Best Internet Providers in Dupo, IL
All 9 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Dupo, IL
Dupo has 9 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, Fiber, Fixed Wireless, and DSL internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Dupo.
Ranks compare Dupo with the 15,682 US towns of 1,000 to 9,999 people, the tiers of our fastest-cities rankings.
The Best Internet in Dupo, IL at a Glance
Dupo Internet Providers, Ranked by Coverage, Speed and Customer Ratings
Spectrum
Connection
Customer Rating
Fiber
Cable
HTC
Connection
Customer Rating
Fiber
DSL
EarthLink
Connection
Customer Rating
DSL
Fixed Wireless
AT&T
Connection
Customer Rating
DSL
Fixed Wireless
Providers with less than 1% coverage in this city 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 Dupo ratings may vary and are shown below.
Who is the Best Internet Provider in Dupo, IL?
T-Mobile Home Internet is the best internet provider in Dupo based on Illinois customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, T-Mobile Home Internet had the best reviews at the local, state, and national levels versus all available providers in Dupo, making it a solid recommendation among providers with reviews. T-Mobile Home Internet is an option for 90.98% of the city.
Click here to get T-Mobile Home Internet
or call 1-833-601-2935
Which Providers are Available at my Home in Dupo?
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 Dupo
- Spectrum - cable coverage map
- Wisper Internet - fixed wireless coverage map
- Sparklight - fiber coverage map
- HTC - fiber coverage map
- Verizon - fixed wireless coverage map
- HTC - dsl coverage map
- Spectrum - fiber coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
- AT&T - dsl coverage map
- EarthLink - dsl coverage map
- Frontier - dsl coverage map
How Dupo Compares to Places Its Size
Dupo's report card score is in the bottom 48% and its connectivity index is in the top 38%.
| Measure | Dupo | Rank among US towns of 1,000 to 9,999 people | St. Clair County | Illinois | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 34.7% | bottom 27% | 49.1% | 47.6% | 71.5% | 1,056 places at 100.0% |
| Average top speed | 1,418 Mbps | bottom 49% | 3,422 Mbps | 3,187 Mbps | 3,486 Mbps | Collegedale, TN and Lakesite, TN and 2 more (25,000 Mbps) |
| Providers at a typical address | 6.8 | top 23% | 7.2 | 7.3 | 7.1 | McLendon-Chisholm, TX (14.2) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.6 | top 33% | 2.6 | 2.6 | 2.7 | St. George, GA (6.2) |
| Workers who work from home | 8% | bottom 41% | 13% | 16% | 15% | Indian Springs, NV (76%) |
| Homes with a computer, tablet or phone | 95% | top 38% | 95% | 95% | 96% | 515 places at 100% |
| Homes with internet | 89% | top 45% | 91% | 91% | 91% | 115 places at 100% |
| Homes on fiber, cable or DSL | 72% | top 35% | 73% | 75% | 76% | Bunkerville, NV and Fort Myer, VA and 3 more (100%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 75% | top 50% | 78% | 81% | 81% | 12 places at 100% |
| Median household income | $62,802 | bottom 29% | $86,744 | $95,616 | $93,246 | 16 places at $250,001 |
| Residents in school (6th grade to college) | 8% | bottom 11% | 16% | 16% | 16% | University Park, PA (95%) |
Fiber reaches 34.7% of homes in Dupo, against 49.1% across St. Clair County and 47.6% across Illinois. Households in Dupo are smaller than the US average (2.6 people against 2.7); 8% of workers work from home (US 15%); and the median household income is $62,802 (US $93,246).
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Fiber, 5G, Cable and DSL Internet in Dupo
Which Fiber Internet Providers are Available in Dupo?
HTC Fiber in Dupo, IL
Availability:
31.3%
Customer Rating:
(0)
Avg. Download Speed
1,000 Mbps
Harrisonville Telephone Company offers Fiber service to 31.3% of Dupo homes. Across the city, HTC Fiber has speeds up to 1,000 Mbps
Sparklight Fiber in Dupo, IL
Availability:
7.3%
Customer Rating:
(23)
Avg. Download Speed
7,000 Mbps
Sparklight offers Fiber service to 7.3% of Dupo homes. Across the city, Sparklight Fiber is the only type of service available from the company, with speeds up to 7,000 Mbps
Spectrum Fiber in Dupo, IL
Availability:
3.7%
Customer Rating:
(207)
Avg. Download Speed
1,000 Mbps
Spectrum offers Fiber service to 3.7% of Dupo homes. Across the city, Spectrum Fiber has speeds up to 1,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Dupo?
Wisper Internet Fixed Wireless in Dupo, IL
Availability:
94.8%
Customer Rating:
(2)
Avg. Download Speed
656 Mbps
Wisper Internet offers Fixed Wireless service to 94.8% of Dupo homes. Across the city, Wisper Internet Fixed Wireless is the only type of service available from the company, with speeds up to 656 Mbps, with speeds from 25 Mpbs up to 800 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 250, with an average of 195 Mbps throughout the city.
Verizon Fixed Wireless in Dupo, IL
Availability:
92.1%
Customer Rating:
(362)
Avg. Download Speed
196 Mbps
Verizon offers Fixed Wireless service to 92.1% of Dupo homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 196 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 15 Mbps throughout the city.
T-Mobile Home Internet Fixed Wireless in Dupo, IL
Availability:
91.0%
Customer Rating:
(342)
Avg. Download Speed
31 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 91.0% of Dupo homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 31 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 4.4 Mbps throughout the city.
EarthLink Fixed Wireless in Dupo, IL
Availability:
78.7%
Customer Rating:
(4)
Avg. Download Speed
28 Mbps
EarthLink offers Fixed Wireless service to 78.7% of Dupo homes. Across the city, EarthLink Fixed Wireless has speeds up to 28 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 3.7 Mbps throughout the city.
AT&T Fixed Wireless in Dupo, IL
Availability:
78.7%
Customer Rating:
(205)
Avg. Download Speed
28 Mbps
AT&T offers Fixed Wireless service to 78.7% of Dupo homes. Across the city, AT&T Fixed Wireless has speeds up to 28 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 3.7 Mbps throughout the city.
Which Cable Internet Providers are Available in Dupo?
Spectrum Cable in Dupo, IL
Availability:
96.9%
Customer Rating:
(1739)
Avg. Download Speed
1,000 Mbps
Spectrum offers Cable service to 96.9% of Dupo homes. Across the city, Spectrum Cable has speeds up to 1,000 Mbps
Which DSL Internet Providers are Available in Dupo?
HTC DSL in Dupo, IL
Availability:
95.8%
Customer Rating:
(5)
Avg. Download Speed
88 Mbps
Harrisonville Telephone Company offers DSL service to 95.8% of Dupo homes. Across the city, HTC DSL has speeds up to 88 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 17 Mbps throughout the city. HTC DSL is rated about the same as other types of internet service available in Dupo from HTC in terms of customer satisfaction.
EarthLink DSL in Dupo, IL
Availability:
3.5%
Customer Rating:
(5)
Avg. Download Speed
10 Mbps
EarthLink offers DSL service to 3.5% of Dupo homes. Across the city, EarthLink DSL has speeds up to 10 Mbps
AT&T DSL in Dupo, IL
Availability:
3.5%
Customer Rating:
(304)
Avg. Download Speed
10 Mbps
AT&T offers DSL service to 3.5% of Dupo homes. Across the city, AT&T DSL has speeds up to 10 Mbps
Frontier DSL in Dupo, IL
Availability:
1.4%
Customer Rating:
(58)
Avg. Download Speed
10 Mbps
Frontier Communications offers DSL service to 1.4% of Dupo homes. Across the city, Frontier DSL is the only type of service available from the company, with speeds up to 10 Mbps
Internet in Dupo by Neighborhood and ZIP Code
Dupo has 1 ZIP code with its own page. Each row links to that place’s page.
Neighborhoods in Dupo
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|
ZIP codes in Dupo
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 62239 | 4,667 | 35.4% | 1,417 Mbps | 6.7 | C+ | 54/100 |
How Dupo Compares to Nearby Places
The 10 places nearest to Dupo that have their own pages are all within 6 miles, 4 of them in Missouri. Among them, Wilbur Park, MO has the most homes with fiber (100.0%) and Alorton the fewest (0.0%); Dupo has 34.7%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Dupo (this page) | 4,600 | 34.7% | 1,418 Mbps | 6.8 | C+ | 55/100 |
| Lemay, MO | 17,531 | 93.8% | 4,515 Mbps | 10.2 | A- | 66/100 |
| Columbia | 13,184 | 61.8% | 998 Mbps | 6.4 | C+ | 72/100 |
| Cahokia | 11,691 | 4.2% | 1,085 Mbps | 7 | C | 58/100 |
| St. George, MO | 2,279 | 73.0% | 3,921 Mbps | 9.8 | B+ | 64/100 |
| East Carondelet | 1,663 | 29.6% | 1,214 Mbps | 6.1 | C | 41/100 |
| Alorton | 1,539 | 0.0% | 996 Mbps | 5 | D+ | 16/100 |
| Bella Villa, MO | 1,063 | 100.0% | 5,000 Mbps | 9.5 | A | 80/100 |
| Wilbur Park, MO | 1,054 | 100.0% | 5,000 Mbps | 10.9 | A+ | 64/100 |
| Sauget | 456 | 0.0% | 1,000 Mbps | 7.1 | C- | 28/100 |
| Phelps | 120 | 79.2% | 925 Mbps | 6.5 | C+ | 78/100 |
Who is the Fastest Internet Provider in Dupo?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by T-Mobile Home Internet. On the other hand, based on data provided by the internet providers to the FCC, Spectrum 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 Dupo
| Sparklight | 7,000 |
|---|---|
| Spectrum | 1,000 |
| Harrisonville Telephone Company | 1,000 |
| Wisper Internet | 800 |
| Verizon | 300 |
| Viasat | 100 |
| T-Mobile Home Internet | 100 |
| AT&T | 100 |
| EarthLink | 100 |
| HughesNet | 25 |
| Frontier Communications | 10 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Dupo. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Dupo Internet Providers
Based on 108 reviews from Illinois internet customers, T-Mobile Home Internet is the best internet service provider for Dupo residents. T-Mobile Home Internet was rated at an average of 3.94 out of 5 in our report for overall customer satisfaction. Verizon wins for second-place in Illinois, with 4.00 out of 5 stars and 92.1% coverage in Dupo.
At a national level, based on 4442 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 Dupo Internet Providers
The table below shows average customer ratings from customers in Dupo, Illinois, and customers throughout the country.
| ISP / Tech Type | Dupo Overall | Illinois Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet | (0) | (18) | (342) | View Plans | ||
| Verizon | (0) | (9) | (816) | View Plans | ||
| AT&T | (0) | (51) | (1051) | View Plans | ||
| HTC | (0) | (3) | (7) | View Plans | ||
| Sparklight | (0) | (6) | (82) | View Plans | ||
| Wisper Internet | (0) |  (1) | (3) | View Plans | ||
| Viasat | (0) |  (1) |  (12) | View Plans | ||
| Frontier | (0) | (5) | (177) | View Plans | ||
| Spectrum | (0) | (15) | (1949) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans |
Customer Ratings for Internet Provider Speeds in Dupo
Based on data reported by Dupo ISPs to the FCC, the fastest speeds in the city are available through Spectrum. The company offers speeds up to 1,000 Mbps in Dupo. Therefore, the average customer can get up to 1,000 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 T-Mobile Home Internet. This indicates T-Mobile Home Internet reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Dupo Speed | Illinois Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet | (0) | (18) | (342) | View Plans | ||
| Verizon | (0) | (9) | (816) | View Plans | ||
| Sparklight | (0) | (6) | (82) | View Plans | ||
| HTC | (0) | (3) | (7) | View Plans | ||
| Frontier | (0) | (5) | (177) | View Plans | ||
| Spectrum | (0) | (15) | (1949) | View Plans | ||
| AT&T | (0) | (51) | (1051) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| Wisper Internet | (0) | (1) | (3) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans |
Who is the Cheapest Internet Provider in Dupo?
Of the providers in Dupo, customers rate Verizon the best for price. Data comes from customers rating their satisfaction with pricing: in Dupo where enough of them have reviewed a provider, otherwise across Illinois or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
Verizon is rated 4.00 out of 5 for price, which is 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 3.78 out of 5.
The table below shows how customers in Dupo, Illinois, and the United States rated the affordability of their internet service.
Rated Affordability in Dupo
| ISP / Tech Type | Dupo Affordability | Illinois Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (0) | (9) | (816) | View Plans | ||
| T-Mobile Home Internet | (0) | (18) | (342) | View Plans | ||
| Frontier | (0) | (5) | (177) | View Plans | ||
| AT&T | (0) | (51) | (1051) | View Plans | ||
| Wisper Internet | (0) | (1) | (3) | View Plans | ||
| Sparklight | (0) | (6) | (82) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| HTC | (0) | (3) | (7) | View Plans | ||
| Spectrum | (0) | (15) | (1949) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans |
Customer Reviews for Internet Service Providers in Illinois
Customer Reviews
ISPReports User
Pavlov Media Fiber
November 13, 2026 
Carol
McDonough Telephone Cooperative Fiber
October 26, 2026 Fast, friendly service. Appreciate being able to get quick help by calling. Actually get a person on the phone
ISPReports User
McDonough Telephone Cooperative Fiber
October 09, 2026 61438
McDonough Telephone Cooperative Fiber
October 08, 2026 MTC has been a great internet for my family. Rather it be gaming system speed, or just watching tv in multiple rooms, The internet seems to run smoothly. I very seldom have internet interruption. When we do it is usually due to storm taking out a pole, or upgrading the system. It usually has been a short time when it does happen.
ISPReports User
MTC Technologies Fiber
October 08, 2026 Rate your provider
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Which ISP Should You Choose in Dupo?
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 Dupo is T-Mobile Home Internet.
- The fastest internet provider should be Spectrum. Considering speed for the money and reliability in speeds, T-Mobile Home Internet may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Dupo is Verizon.
- Viasat, Spectrum, and HughesNet has the broadest coverage in Dupo, available to 96.9% 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.