Best Internet Providers in Sullivan County, IN
All 12 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Sullivan County, IN
Sullivan County has 12 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, Fixed Wireless, and DSL internet are available in the county. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Sullivan County.
Ranks compare Sullivan County with the 92 Indiana counties.
The Best Internet in Sullivan County, IN at a Glance
Sullivan County Internet Providers, Ranked by Coverage, Speed and Customer Ratings
Joink
Connection
Customer Rating
Fiber
Fixed Wireless
Frontier
Connection
Customer Rating
Fiber
DSL
XFINITY
Connection
Customer Rating
Cable
Sparklight
Connection
Customer Rating
Cable
Providers with less than 1% coverage in this county are excluded from the list. To see if one of these providers is available at your home, please use the address search above.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local Sullivan County ratings may vary and are shown below.
Who is the Best Internet Provider in Sullivan County, IN?
Verizon is the highest-rated internet provider in Sullivan County based on 166 Indiana customer reviews, and T-Mobile Home Internet has the highest rating nationwide. The provider information above and the information immediately below can help you decide. Compare provider ratings and review counts above.
or call 1-833-213-7018
Which Providers are Available at my Home in Sullivan County?
Coverage changes block by block. Pick a provider and a technology to see where its service reaches: the darker the area, the larger the share of homes it covers. For your exact address, use the address search above.
Coverage map for each provider in Sullivan County
- Frontier - fiber coverage map
- Joink - fiber coverage map
- XFINITY - cable coverage map
- Sparklight - cable coverage map
- Verizon - fixed wireless coverage map
- Joink - fixed wireless coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- Spectrum - fiber coverage map
- Nextlink - fixed wireless coverage map
- Frontier - dsl coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
- Rise Broadband - fixed wireless coverage map
- Smithville - dsl coverage map
- AT&T - dsl coverage map
- EarthLink - dsl coverage map
How Sullivan County Compares to the Rest of Indiana
Sullivan County's report card score is 75th of 92 and its connectivity index is 82nd of 92.
| Measure | Sullivan County | Rank among Indiana counties | Indiana | US | Leader |
|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | |||||
| Fiber availability | 60.0% | 80th of 92 | 76.3% | 71.5% | Fulton County (99.9%) |
| Average top speed | 1,979 Mbps | 58th of 92 | 3,867 Mbps | 3,486 Mbps | Hancock County (7,287 Mbps) |
| Providers at a typical address | 5.6 | 68th of 92 | 7.6 | 7.1 | Floyd County and Steuben County (9.2) |
| Connectivity index inputs: how much households need and use the internet | |||||
| People per household | 2.4 | Tied 60th of 92 | 2.5 | 2.7 | LaGrange County (3.3) |
| Workers who work from home | 7% | Tied 49th of 92 | 11% | 15% | Hamilton County (23%) |
| Homes with a computer, tablet or phone | 92% | Tied 64th of 92 | 95% | 96% | Hamilton County (99%) |
| Homes with internet | 84% | Tied 77th of 92 | 90% | 91% | Hamilton County (97%) |
| Homes on fiber, cable or DSL | 58% | Tied 72nd of 92 | 72% | 76% | Hamilton County (86%) |
| More about the households here | |||||
| Homes with a desktop or laptop | 68% | Tied 71st of 92 | 77% | 81% | Hamilton County (92%) |
| Median household income | $59,793 | 89th of 92 | $81,120 | $93,246 | Hamilton County ($134,418) |
| Residents in school (6th grade to college) | 11% | Tied 82nd of 92 | 16% | 16% | Monroe County and Tippecanoe County (31%) |
Fiber reaches 60.0% of homes in Sullivan County, against 76.3% across Indiana. Households in Sullivan County are smaller than the US average (2.4 people against 2.7); 7% of workers work from home (US 15%); and the median household income is $59,793 (US $93,246).
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
How Sullivan County Compares to Its Neighbors
Sullivan County has 6 neighbors, 2 of them in Illinois. Among them, Clay County has the most homes with fiber (92.7%) and Greene County the fewest (21.4%); Sullivan County has 60.0%.
Map of Sullivan County and its neighbors by ISP Report Card grade
Hover over or tap a county for its numbers, and click through to its page.
Sullivan County and its neighbors
| County | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Sullivan County (this page) | 20,817 | 60.0% | 1,979 Mbps | 5.6 | C+ | 33/100 |
| Vigo County | 106,153 | 85.5% | 4,555 Mbps | 6.9 | B+ | 47/100 |
| Knox County | 36,282 | 61.2% | 3,678 Mbps | 5.7 | B- | 41/100 |
| Greene County | 30,803 | 21.4% | 864 Mbps | 5.8 | C- | 30/100 |
| Clay County | 26,466 | 92.7% | 4,183 Mbps | 6.8 | B+ | 41/100 |
| Crawford County, IL | 18,679 | 70.3% | 4,914 Mbps | 5.4 | B- | 37/100 |
| Clark County, IL | 15,455 | 64.8% | 2,142 Mbps | 7 | B- | 27/100 |
Internet in Sullivan County by City and ZIP Code
Fiber reaches from 17.8% of homes in Carlisle to 78.1% in Farmersburg; by ZIP code, from 19.8% in 47838 (Carlisle) to 74.0% in 47850 (Farmersburg). Each row links to that place’s page.
Cities and towns in Sullivan County
| City or town | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Sullivan | 7,305 | 78.0% | 4,391 Mbps | 7.3 | B+ | 45/100 |
| Carlisle | 3,471 | 17.8% | 412 Mbps | 2.9 | D | 33/100 |
| Shelburn | 2,468 | 66.6% | 815 Mbps | 5.4 | C | 20/100 |
| Farmersburg | 1,976 | 78.1% | 847 Mbps | 6 | C+ | 27/100 |
| Dugger | 1,230 | 71.9% | 953 Mbps | 7.5 | C+ | 19/100 |
| Hymera | 936 | 96.8% | 978 Mbps | 4.1 | C+ | 31/100 |
| Lewis | 775 | 88.8% | 918 Mbps | 3.7 | C | 21/100 |
| Fairbanks | 689 | 0.0% | 184 Mbps | 3.4 | D- | 32/100 |
| Merom | 651 | 79.0% | 826 Mbps | 3.9 | C- | 43/100 |
| Paxton | 398 | 54.8% | 714 Mbps | 5.7 | C- | 25/100 |
| Graysville | 353 | 60.6% | 973 Mbps | 6.2 | C | 45/100 |
| Scott City | 286 | 0.0% | 217 Mbps | 4.5 | D- | 22/100 |
| Gilmour | 249 | 19.7% | 408 Mbps | 2.8 | D | 34/100 |
| Gambill | 230 | 0.0% | 553 Mbps | 5.5 | D | 25/100 |
| New Lebanon | 192 | 0.0% | 297 Mbps | 3.7 | D- | 41/100 |
| Pleasantville | 180 | 0.0% | 169 Mbps | 2.5 | F | 36/100 |
| Jackson Hill | 96 | 0.0% | 198 Mbps | 4.8 | D | 31/100 |
| Riverton | 78 | 0.0% | 280 Mbps | 4.3 | D- | 41/100 |
| Wilfred | 35 | 82.9% | 1,000 Mbps | 7 | B- | 14/100 |
ZIP codes in Sullivan County
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 47882 (Sullivan) | 8,667 | 70.4% | 3,786 Mbps | 6.9 | B | 44/100 |
| 47838 (Carlisle) | 3,917 | 19.8% | 427 Mbps | 3.1 | D | 33/100 |
| 47879 (Shelburn) | 2,927 | 68.8% | 813 Mbps | 5.2 | C | 20/100 |
| 47850 (Farmersburg) | 2,289 | 74.0% | 824 Mbps | 5.8 | C | 24/100 |
| 47848 (Dugger) | 1,487 | 59.5% | 949 Mbps | 7.3 | C+ | 19/100 |
| 47855 (Hymera) | 615 | 100.0% | 1,000 Mbps | 4 | C+ | 33/100 |
| 47858 (Lewis) | 587 | 87.9% | 912 Mbps | 3.8 | C- | 25/100 |
| 47861 (Merom) | 550 | 65.1% | 721 Mbps | 3.7 | D+ | 42/100 |
| 47849 (Fairbanks) | 537 | 0.0% | 186 Mbps | 3.6 | D- | 24/100 |
| 47865 (Paxton) | 45 | 71.1% | 798 Mbps | 5.7 | C | 29/100 |
Who is the Fastest Internet Provider in Sullivan County?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by Verizon. On the other hand, based on data provided by the internet providers to the FCC, Frontier Communications should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in Sullivan County
| Frontier Communications | 7,000 |
|---|---|
| XFINITY from Comcast | 1,200 |
| Joink | 1,000 |
| Sparklight | 1,000 |
| Nextlink | 1,000 |
| Spectrum | 1,000 |
| Verizon | 300 |
| Viasat | 100 |
| T-Mobile Home Internet | 100 |
| AT&T | 100 |
| EarthLink | 100 |
| Rise Broadband | 100 |
| Smithville | 100 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Sullivan County. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Sullivan County Internet Providers
Based on 166 reviews from Indiana internet customers, Verizon is the best internet service provider for Sullivan County residents. Verizon was rated at an average of 4.29 out of 5 in our report for overall customer satisfaction. Joink wins for second-place in Indiana, with 4.50 out of 5 stars and 90.8% coverage in Sullivan County.
At a national level, based on 6856 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.02 out of 5.
Local, State, and National Ratings for all Sullivan County Internet Providers
The table below shows average customer ratings from customers in Sullivan County, Indiana, and customers throughout the country.
| ISP / Tech Type | Sullivan County Overall | Indiana Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Verizon |  (0) | (7) |  (816) | View Plans | ||
| Joink | (0) | (2) | (3) | View Plans | ||
| AT&T | (0) | (30) | (1051) | View Plans | ||
| T-Mobile Home Internet | (0) | (7) | (342) | View Plans | ||
| Smithville | (0) | (5) | (5) | View Plans | ||
| XFINITY | (0) | (81) | (2379) | View Plans | ||
| HughesNet | (0) | (2) | (25) | View Plans | ||
| Spectrum | (0) |  (24) | (1949) | View Plans | ||
| Frontier | (0) | (10) | (177) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Sparklight | (0) | (0) | (82) | View Plans | ||
| Nextlink | (0) | (0) | (19) | View Plans | ||
| Rise Broadband | (0) | (0) | (18) | View Plans | ||
| Viasat | (0) | (0) |  (12) | View Plans |
Customer Ratings for Internet Provider Speeds in Sullivan County
Based on data reported by Sullivan County ISPs to the FCC, the fastest speeds in the county are available through Frontier Communications. The company offers speeds up to 7,000 Mbps in Sullivan County. Therefore, the average customer can get up to 2,319 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
However, actual customers rated their satisfaction with internet speed highest with Verizon. This indicates Verizon reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Sullivan County Speed | Indiana Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (0) | (7) | (816) | View Plans | ||
| XFINITY | (0) | (81) | (2379) | View Plans | ||
| Joink | (0) | (2) | (3) | View Plans | ||
| Smithville | (0) | (5) | (5) | View Plans | ||
| AT&T | (0) | (30) | (1051) | View Plans | ||
| Spectrum | (0) | (24) | (1949) | View Plans | ||
| T-Mobile Home Internet | (0) | (7) | (342) | View Plans | ||
| HughesNet | (0) | (2) | (25) | View Plans | ||
| Frontier | (0) | (10) | (177) | View Plans | ||
| Sparklight | (0) | (0) | (82) | View Plans | ||
| Rise Broadband | (0) | (0) | (18) | View Plans | ||
| Nextlink | (0) | (0) | (19) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Who is the Cheapest Internet Provider in Sullivan County?
Of the providers in Sullivan County, customers rate Joink the best for price. Data comes from customers rating their satisfaction with pricing: in Sullivan County where enough of them have reviewed a provider, otherwise across Indiana or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
Joink is rated 5.00 out of 5 for price, which is much higher than the average across all internet providers in the country. T-Mobile Home Internet is rated second for affordability, with an average price rating of 3.71 out of 5.
The table below shows how customers in Sullivan County, Indiana, and the United States rated the affordability of their internet service.
Rated Affordability in Sullivan County
| ISP / Tech Type | Sullivan County Affordability | Indiana Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Joink | (0) | (2) | (3) | View Plans | ||
| Verizon | (0) | (7) | (816) | View Plans | ||
| T-Mobile Home Internet | (0) | (7) | (342) | View Plans | ||
| HughesNet | (0) | (2) | (25) | View Plans | ||
| Smithville | (0) | (5) | (5) | View Plans | ||
| AT&T | (0) | (30) | (1051) | View Plans | ||
| Frontier | (0) | (10) | (177) | View Plans | ||
| XFINITY | (0) | (81) | (2379) | View Plans | ||
| Spectrum | (0) | (24) | (1949) | View Plans | ||
| Nextlink | (0) | (0) | (19) | View Plans | ||
| Sparklight | (0) | (0) | (82) | View Plans | ||
| Rise Broadband | (0) | (0) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Fiber, 5G, Cable and DSL Internet in Sullivan County
Which Fiber Internet Providers are Available in Sullivan County?
Joink Fiber in Sullivan County, IN
Availability:
57.2%
Customer Rating:
(2)
Avg. Download Speed
1,000 Mbps
Joink offers Fiber service to 57.2% of Sullivan County homes. Across the county, Joink Fiber has speeds up to 1,000 Mbps
Frontier Fiber in Sullivan County, IN
Availability:
20.2%
Customer Rating:
(119)
Avg. Download Speed
7,000 Mbps
Frontier Communications offers Fiber service to 20.2% of Sullivan County homes. Across the county, Frontier Fiber has speeds up to 7,000 Mbps
Spectrum Fiber in Sullivan County, IN
Availability:
3.9%
Customer Rating:
(207)
Avg. Download Speed
1,000 Mbps
Spectrum offers Fiber service to 3.9% of Sullivan County homes. Across the county, Spectrum Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Sullivan County?
T-Mobile Home Internet Fixed Wireless in Sullivan County, IN
Availability:
85.7%
Customer Rating:
(342)
Avg. Download Speed
51 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 85.7% of Sullivan County homes. Across the county, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 51 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 8.8 Mbps throughout the county.
Joink Fixed Wireless in Sullivan County, IN
Availability:
78.4%
Customer Rating:
(1)
Avg. Download Speed
187 Mbps
Joink offers Fixed Wireless service to 78.4% of Sullivan County homes. Across the county, Joink Fixed Wireless has speeds up to 187 Mbps, with speeds from 25 Mpbs up to 250 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 50, with an average of 36 Mbps throughout the county.
Verizon Fixed Wireless in Sullivan County, IN
Availability:
65.2%
Customer Rating:
(362)
Avg. Download Speed
234 Mbps
Verizon offers Fixed Wireless service to 65.2% of Sullivan County homes. Across the county, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 234 Mbps, with speeds from 25 Mpbs up to 300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 6.0 and as high as 20, with an average of 17 Mbps throughout the county.
EarthLink Fixed Wireless in Sullivan County, IN
Availability:
43.6%
Customer Rating:
(4)
Avg. Download Speed
26 Mbps
EarthLink offers Fixed Wireless service to 43.6% of Sullivan County homes. Across the county, EarthLink Fixed Wireless has speeds up to 26 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 3.1 Mbps throughout the county.
AT&T Fixed Wireless in Sullivan County, IN
Availability:
43.6%
Customer Rating:
(205)
Avg. Download Speed
26 Mbps
AT&T offers Fixed Wireless service to 43.6% of Sullivan County homes. Across the county, AT&T Fixed Wireless has speeds up to 26 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 3.1 Mbps throughout the county.
Rise Broadband Fixed Wireless in Sullivan County, IN
Availability:
21.8%
Customer Rating:
(15)
Avg. Download Speed
35 Mbps
Rise Broadband offers Fixed Wireless service to 21.8% of Sullivan County homes. Across the county, Rise Broadband Fixed Wireless is the only type of service available from the company, with speeds up to 35 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 6.7 Mbps throughout the county.
Nextlink Fixed Wireless in Sullivan County, IN
Availability:
9.2%
Customer Rating:
(14)
Avg. Download Speed
414 Mbps
Nextlink offers Fixed Wireless service to 9.2% of Sullivan County homes. Across the county, Nextlink Fixed Wireless is the only type of service available from the company, with speeds up to 414 Mbps, with speeds from 50 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 10 and as high as 500, with an average of 88 Mbps throughout the county.
Which Cable Internet Providers are Available in Sullivan County?
XFINITY Cable in Sullivan County, IN
Availability:
28.2%
Customer Rating:
(2077)
Avg. Download Speed
1,200 Mbps
XFINITY from Comcast offers Cable service to 28.2% of Sullivan County homes. Across the county, XFINITY Cable is the only type of service available from the company, with speeds up to 1,200 Mbps
Sparklight Cable in Sullivan County, IN
Availability:
25.2%
Customer Rating:
(58)
Avg. Download Speed
1,000 Mbps
Sparklight offers Cable service to 25.2% of Sullivan County homes. Across the county, Sparklight Cable is the only type of service available from the company, with speeds up to 1,000 Mbps
Which DSL Internet Providers are Available in Sullivan County?
Frontier DSL in Sullivan County, IN
Availability:
54.2%
Customer Rating:
(58)
Avg. Download Speed
37 Mbps
Frontier Communications offers DSL service to 54.2% of Sullivan County homes. Across the county, Frontier DSL has speeds up to 37 Mbps, with speeds from 10 Mpbs up to 115 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 7.0, with an average of 2.4 Mbps throughout the county. Frontier DSL is rated higher than other types of internet service available in Sullivan County from Frontier in terms of customer satisfaction.
Smithville DSL in Sullivan County, IN
Availability:
6.5%
Customer Rating:
(1)
Avg. Download Speed
29 Mbps
Smithville offers DSL service to 6.5% of Sullivan County homes. Across the county, Smithville DSL is the only type of service available from the company, with speeds up to 29 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 50, with an average of 6.4 Mbps throughout the county.
EarthLink DSL in Sullivan County, IN
Availability:
5.0%
Customer Rating:
(5)
Avg. Download Speed
10 Mbps
EarthLink offers DSL service to 5.0% of Sullivan County homes. Across the county, EarthLink DSL has speeds up to 10 Mbps
AT&T DSL in Sullivan County, IN
Availability:
5.0%
Customer Rating:
(304)
Avg. Download Speed
10 Mbps
AT&T offers DSL service to 5.0% of Sullivan County homes. Across the county, AT&T DSL has speeds up to 10 Mbps
Customer Reviews for Internet Service Providers in Indiana
Customer Reviews
ISPReports User
Frontier Fiber
October 08, 2026 When it works, it is good, but there is no real customer service. The site says you can call till 9 PM ET, but when you try, it tells you they are closed. The chatbot sucks and never knows what you are talking about. Their app works like it was made by a first-year high school student. The people chatting have to translate to whatever language they speak, so it is slow and not always in the right order; it is like talking to Yoda half the time. This is one of the worst places to deal with or get help when it is needed.
Jjames A
Kosciusko Connect Fiber
October 04, 2026 Service excellent Number of units using is up to 13. Watches, 4 computers, 3 iPads, 4 cell phones and two tvs
phyllis t
Surf Fiber
September 30, 2026 great
Sam F
Spectrum Cable
July 31, 2026 Service is pretty good but moving service is a headache. Not suggested for anyone planning to move whether near or far future.
Tim
Surf Fiber
July 27, 2026 have had surf since late December of 2024 and there awesome my speeds up and down always run above 250 and i have no complaints and have had very few outages over the course of time maybe t or three tops so i understated all ISP can have an outage from time to time this should be anticipated and is not a serious ding
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Which ISP Should You Choose in Sullivan County?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in Sullivan County is Verizon.
- The fastest internet provider should be Frontier Communications. Considering speed for the money and reliability in speeds, Verizon may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Sullivan County is Joink.
- Viasat, Joink, and HughesNet has the broadest coverage in Sullivan County, available to 90.8% of homes, and is most likely to cover your home. To find out exactly what’s available at your home, please use our address search tool.