Best Internet Providers in Williamsville, IL
All 9 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Williamsville, IL
Williamsville has 9 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. 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 3 available internet technologies in Williamsville.
Ranks compare Williamsville with the 15,682 US towns of 1,000 to 9,999 people, the tiers of our fastest-cities rankings.
The Best Internet in Williamsville, IL at a Glance
Williamsville Internet Providers, Ranked by Coverage, Speed and Customer Ratings
CASSCOMM
Connection
Customer Rating
Fiber
Frontier
Connection
Customer Rating
DSL
EarthLink
Connection
Customer Rating
Fixed Wireless
Verizon
Connection
Customer Rating
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 Williamsville ratings may vary and are shown below.
Who is the Best Internet Provider in Williamsville, IL?
CASSCOMM is the highest-rated internet provider in Williamsville based on 89 Illinois 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.
Which Providers are Available at my Home in Williamsville?
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 Williamsville
- CASSCOMM - fiber coverage map
- Verizon - fixed wireless coverage map
- Nextlink - fixed wireless coverage map
- Community Fiber Solutions - fixed wireless coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
- Rise Broadband - fixed wireless coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- Frontier - dsl coverage map
How Williamsville Compares to Places Its Size
Williamsville's report card score is in the top 24% and its connectivity index is in the top 35%.
| Measure | Williamsville | Rank among US towns of 1,000 to 9,999 people | Sangamon County | Illinois | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 85.3% | top 42% | 64.2% | 47.6% | 71.5% | 1,056 places at 100.0% |
| Average top speed | 1,766 Mbps | top 42% | 4,185 Mbps | 3,187 Mbps | 3,486 Mbps | Collegedale, TN and Lakesite, TN and 2 more (25,000 Mbps) |
| Providers at a typical address | 7.5 | top 14% | 8.3 | 7.3 | 7.1 | McLendon-Chisholm, TX (14.2) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.5 | top 45% | 2.3 | 2.6 | 2.7 | St. George, GA (6.2) |
| Workers who work from home | 21% | top 10% | 14% | 16% | 15% | Indian Springs, NV (76%) |
| Homes with a computer, tablet or phone | 98% | top 10% | 96% | 95% | 96% | 515 places at 100% |
| Homes with internet | 92% | top 27% | 91% | 91% | 91% | 115 places at 100% |
| Homes on fiber, cable or DSL | 62% | bottom 40% | 68% | 75% | 76% | Bunkerville, NV and Fort Myer, VA and 3 more (100%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 82% | top 27% | 78% | 81% | 81% | 12 places at 100% |
| Median household income | $114,742 | top 12% | $86,440 | $95,616 | $93,246 | 16 places at $250,001 |
| Residents in school (6th grade to college) | 18% | top 9% | 14% | 16% | 16% | University Park, PA (95%) |
Fiber reaches 85.3% of homes in Williamsville, against 64.2% across Sangamon County and 47.6% across Illinois. Households in Williamsville are smaller than the US average (2.5 people against 2.7); 21% of workers work from home (US 15%); and the median household income is $114,742 (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 Williamsville
Which Fiber Internet Providers are Available in Williamsville?
CASSCOMM Fiber in Williamsville, IL
Availability:
85.3%
Customer Rating:
(4)
Avg. Download Speed
2,000 Mbps
CASSCOMM offers Fiber service to 85.3% of Williamsville homes. Across the city, CASSCOMM Fiber is the only type of service available from the company, with speeds up to 2,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Williamsville?
Verizon Fixed Wireless in Williamsville, IL
Availability:
98.4%
Customer Rating:
(362)
Avg. Download Speed
278 Mbps
Verizon offers Fixed Wireless service to 98.4% of Williamsville homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 278 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 19 Mbps throughout the city.
Rise Broadband Fixed Wireless in Williamsville, IL
Availability:
97.9%
Customer Rating:
(15)
Avg. Download Speed
48 Mbps
Rise Broadband offers Fixed Wireless service to 97.9% of Williamsville homes. Across the city, Rise Broadband Fixed Wireless is the only type of service available from the company, with speeds up to 48 Mbps, with speeds from 10 Mpbs up to 300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 60, with an average of 9.4 Mbps throughout the city.
EarthLink Fixed Wireless in Williamsville, IL
Availability:
95.1%
Customer Rating:
(4)
Avg. Download Speed
73 Mbps
EarthLink offers Fixed Wireless service to 95.1% of Williamsville homes. Across the city, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 73 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 14 Mbps throughout the city.
AT&T Fixed Wireless in Williamsville, IL
Availability:
95.1%
Customer Rating:
(205)
Avg. Download Speed
73 Mbps
AT&T offers Fixed Wireless service to 95.1% of Williamsville homes. Across the city, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 73 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 14 Mbps throughout the city.
Community Fiber Solutions Fixed Wireless in Williamsville, IL
Availability:
72.6%
Customer Rating:
(0)
Avg. Download Speed
100 Mbps
Community Fiber Solutions (CFS) offers Fixed Wireless service to 72.6% of Williamsville homes. Across the city, Community Fiber Solutions Fixed Wireless is the only type of service available from the company, with speeds up to 100 Mbps
Nextlink Fixed Wireless in Williamsville, IL
Availability:
61.3%
Customer Rating:
(14)
Avg. Download Speed
160 Mbps
Nextlink offers Fixed Wireless service to 61.3% of Williamsville homes. Across the city, Nextlink Fixed Wireless is the only type of service available from the company, with speeds up to 160 Mbps, with speeds from 100 Mpbs up to 700 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 20 and as high as 300, with an average of 47 Mbps throughout the city.
T-Mobile Home Internet Fixed Wireless in Williamsville, IL
Availability:
51.7%
Customer Rating:
(342)
Avg. Download Speed
36 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 51.7% of Williamsville homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 36 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 5.4 Mbps throughout the city.
Which Cable Internet Providers are Available in Williamsville?
According to the most recently submitted data by internet service providers to the FCC, there are currently no cable providers available in Williamsville, IL.
Which DSL Internet Providers are Available in Williamsville?
Frontier DSL in Williamsville, IL
Availability:
84.4%
Customer Rating:
(58)
Avg. Download Speed
10 Mbps
Frontier Communications offers DSL service to 84.4% of Williamsville homes. Across the city, Frontier DSL is the only type of service available from the company, with speeds up to 10 Mbps
Internet in Williamsville by Neighborhood and ZIP Code
Williamsville has 1 ZIP code with its own page. Each row links to that place’s page.
Neighborhoods in Williamsville
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|
ZIP codes in Williamsville
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 62693 | 1,729 | 82.8% | 1,719 Mbps | 7.7 | B | 56/100 |
How Williamsville Compares to Nearby Places
The 10 places nearest to Williamsville that have their own pages are all within 10 miles. Among them, Sherman has the most homes with fiber (93.5%) and Spaulding the fewest (58.2%); Williamsville has 85.3%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Williamsville (this page) | 1,846 | 85.3% | 1,766 Mbps | 7.5 | B | 57/100 |
| Sherman | 5,577 | 93.5% | 1,906 Mbps | 7.3 | B+ | 85/100 |
| Riverton | 4,024 | 90.2% | 1,884 Mbps | 7.9 | B+ | 52/100 |
| Spaulding | 1,231 | 58.2% | 1,653 Mbps | 8.4 | B- | 57/100 |
| Clear Lake | 1,129 | 72.3% | 3,135 Mbps | 9.9 | B+ | 51/100 |
| Cantrall | 842 | 38.8% | 692 Mbps | 6.3 | C | 53/100 |
| Bissell | 320 | 0.0% | 1,200 Mbps | 8.6 | C | 65/100 |
| Green Acres | 310 | 0.0% | 700 Mbps | 5.5 | D | 54/100 |
| Cornland | 249 | 0.0% | 663 Mbps | 4.1 | D- | 33/100 |
| Fancy Prairie | 207 | 0.0% | 490 Mbps | 5.1 | D | 44/100 |
| Devereux Heights | 41 | 0.0% | 1,200 Mbps | 5 | D+ | 36/100 |
Who is the Fastest Internet Provider in Williamsville?
Based on both FCC data and unbiased customer ratings, the fastest internet in the city comes from CASSCOMM.
Data Reported to FCC by ISPs: Average Maximum Available in Williamsville
| CASSCOMM | 2,000 |
|---|---|
| Nextlink | 700 |
| Verizon | 300 |
| Rise Broadband | 300 |
| Viasat | 100 |
| AT&T | 100 |
| EarthLink | 100 |
| Community Fiber Solutions (CFS) | 100 |
| T-Mobile Home Internet | 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 Williamsville. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Williamsville Internet Providers
Based on 89 reviews from Illinois internet customers, CASSCOMM is the best internet service provider for Williamsville residents. CASSCOMM was rated at an average of 4.80 out of 5 in our report for overall customer satisfaction. T-Mobile Home Internet wins for second-place in Illinois, with 3.94 out of 5 stars and 51.7% coverage in Williamsville.
At a national level, based on 2443 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 Williamsville Internet Providers
The table below shows average customer ratings from customers in Williamsville, Illinois, and customers throughout the country.
| ISP / Tech Type | Williamsville Overall | Illinois Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| CASSCOMM | (0) | (5) | (5) | View Plans | ||
| T-Mobile Home Internet | (0) | (18) | (342) | View Plans | ||
| Verizon | (0) | (9) | (816) | View Plans | ||
| Rise Broadband | (0) | (1) | (18) | View Plans | ||
| AT&T | (0) | (51) | (1051) | View Plans | ||
| Viasat | (0) |  (1) |  (12) | View Plans | ||
| Frontier | (0) | (5) | (177) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Nextlink | (0) | (0) | (19) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| Community Fiber Solutions | (0) | (0) | (0) | View Plans |
Customer Ratings for Internet Provider Speeds in Williamsville
Based on data reported by Williamsville ISPs to the FCC, the fastest speeds in the city are available through CASSCOMM. The company offers speeds up to 2,000 Mbps in Williamsville. Therefore, the average customer can get up to 2,000 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers rated their satisfaction with internet speed highest with CASSCOMM. This indicates CASSCOMM reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Williamsville Speed | Illinois Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| CASSCOMM | (0) |  (5) | (5) | View Plans | ||
| T-Mobile Home Internet | (0) | (18) | (342) | View Plans | ||
| Verizon | (0) | (9) | (816) | View Plans | ||
| Rise Broadband | (0) | (1) | (18) | View Plans | ||
| Frontier | (0) | (5) | (177) | View Plans | ||
| AT&T | (0) | (51) | (1051) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| Nextlink | (0) | (0) | (19) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| Community Fiber Solutions | (0) | (0) | (0) | View Plans |
Who is the Cheapest Internet Provider in Williamsville?
Of the providers in Williamsville, customers rate Verizon the best for price. Data comes from customers rating their satisfaction with pricing: in Williamsville 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. CASSCOMM is rated second for affordability, with an average price rating of 4.20 out of 5.
The table below shows how customers in Williamsville, Illinois, and the United States rated the affordability of their internet service.
Rated Affordability in Williamsville
| ISP / Tech Type | Williamsville Affordability | Illinois Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| CASSCOMM | (0) | (5) | (5) | View Plans | ||
| 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 | ||
| Rise Broadband | (0) |  (1) | (18) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| Nextlink | (0) | (0) | (19) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| Community Fiber Solutions | (0) | (0) | (0) | 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 Williamsville?
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 Williamsville is CASSCOMM.
- The fastest internet provider should be CASSCOMM. Considering speed for the money and reliability in speeds, CASSCOMM may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Williamsville is Verizon.
- Viasat, Verizon, and HughesNet has the broadest coverage in Williamsville, available to 98.4% 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.