8 Best Internet Providers in Green Castle, IA
Find internet availability by address in Green Castle, IA
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | Green Castle ISP Report Card | Business Internet in Green Castle
| Green Castle ISP Report Card | C- | |
| Download Speed for Most Households | 977 Mbps | |
| Number of Internet Service Providers | 8 | |
| Real Green Castle Customer Ratings | 0 |
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
Green Castle has 8 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, DSL, and Fixed Wireless 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 Green Castle.
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Green Castle has 8 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, DSL, and Fixed Wireless 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 Green Castle.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
Centurylink
Connection
Customer Rating
DSL
Mediacom
Connection
Customer Rating
Cable
EarthLink
Connection
Customer Rating
Fixed Wireless
T-Mobile Home Internet
Connection
Customer Rating
Fixed Wireless
Above are the top 4 providers in Green Castle, IA for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your city.
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 Green Castle ratings may vary and are shown below.
Who is the Best Internet Provider in Green Castle, IA?
US Cellular is the best internet provider in Green Castle based on Iowa customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, US Cellular had the best reviews at the local, state, and national levels versus all available providers in Green Castle, making it a solid recommendation among providers with reviews. US Cellular is an option for 100.00% of the city.
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The chart and table below show average customer ratings from customers in Green Castle, Iowa, and customers throughout the country.
Top Rated Internet Providers in Green Castle
Local, State, and National Ratings for all Green Castle Internet Providers
| ISP / Tech Type | Green Castle Overall | Iowa Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| US Cellular | (0) | (3) | (15) | View Plans | ||
| T-Mobile Home Internet | (0) | (4) | (284) | View Plans | ||
| AT&T | (0) | (1) | (924) | View Plans | ||
| Mediacom | (0) | (20) | (84) | View Plans | ||
| Centurylink | (0) | (10) | (163) | View Plans | ||
| Nextlink | (0) | (1) | (14) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Rise Broadband | (0) | (0) | (18) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans |
Based on 40 reviews from Iowa internet customers, US Cellular is the best internet service provider for Green Castle residents. US Cellular was rated at an average of 4.33 out of 5 in our report for overall customer satisfaction. T-Mobile Home Internet wins for second-place in Iowa, with 4.25 out of 5 stars and 100.0% coverage in Green Castle.
At a national level, based on 1543 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.04 out of 5.
Which Providers are Available at my Home in Green Castle?
a different provider.

Internet Availability Key
Speeds and coverage vary within the city, and sometimes even from block to block. The map shows speeds per provider and where each provider is available.
Who is the Fastest Internet Provider in Green Castle?
According to unbiased feedback from real internet customers in the city, they reported being happiest with speeds provided by US Cellular. On the other hand, based on data provided by the internet providers to the FCC, Mediacom 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 Green Castle
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| Mediacom | 1,000 Mbps | ||
| Nextlink | 1,000 Mbps | ||
| Rise Broadband | 100 Mbps | ||
| Centurylink | 100 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| AT&T | 25 Mbps | ||
| EarthLink | 25 Mbps | ||
| HughesNet | 25 Mbps | ||
| US Cellular | 25 Mbps |
Customer Ratings for Internet Provider Speeds in Green Castle
| ISP / Tech Type | Green Castle Speed | Iowa Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| US Cellular | (0) | (3) | (15) | View Plans | ||
| T-Mobile Home Internet | (0) | (4) | (284) | View Plans | ||
| AT&T | (0) | (1) | (924) | View Plans | ||
| Mediacom | (0) | (20) | (84) | View Plans | ||
| Centurylink | (0) | (10) | (163) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Nextlink | (0) | (1) | (14) | View Plans | ||
| Rise Broadband | (0) | (0) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans |
Based on data reported by Green Castle ISPs to the FCC, the fastest speeds in the city are available through Mediacom. The company offers speeds up to 1,000 Mbps in Green Castle. 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.
Additionally, actual customers in the city rated their satisfaction with internet speed highest with US Cellular. This indicates US Cellular reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in Green Castle?
Iowa customers rate T-Mobile Home Internet as the cheapest internet service provider in state. Data comes from customers in the state rating their satisfaction with pricing. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
T-Mobile Home Internet received a local rating of 4.00 out of 5, which is lower than the average across all internet providers in the country. US Cellular is rated in second place for affordability by the company’s Green Castle customers with an average price rating of 4.00 out of 5.
The chart and graph below show how customers in Green Castle, Iowa, and the United States rated the affordability of their internet service.
Rated Affordability in Green Castle
| ISP / Tech Type | Green Castle Affordability | Iowa Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| US Cellular | (0) | (3) | (15) | View Plans | ||
| T-Mobile Home Internet | (0) | (4) | (284) | View Plans | ||
| AT&T | (0) | (1) | (924) | View Plans | ||
| Centurylink | (0) | (10) | (163) | View Plans | ||
| Mediacom | (0) | (20) | (84) | View Plans | ||
| Nextlink | (0) | (1) | (14) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Rise Broadband | (0) | (0) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans |
Green Castle Internet Health Assessment
ISP Reports evaluates the technological infrastructure across the United States. This includes assessing a grade for ISP providers and infrastructure in the city and setting an index number for the digital connectivity of its residents. You can view the ISP Report Card and the Digital Connectivity Index for Green Castle below, including the metrics used and how Green Castle compares to the rest of Iowa and nation.
| Metric
(hover for details)
|
Green Castle | Iowa | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in Green Castle that have a Fiber internet connection available to their home. | 0.00% | 78.64% | 67.25% | ||
| Average Download SpeedThe maximum download speed most households can get on average. This is measured by availability in a block group and weighted by the population in that area. | 977 Mbps | 2,759 Mbps | 3,293 Mbps | ||
| Provider CountThe number of providers available for most people. This is a weighted average by block rather than a total for Green Castle. | 6.1 | 7.3 | 6.8 |
| Average Household SizeA larger household size in a city indicates that there will be a greater need for bandwidth due to simultaneous usage, multiple devices, and network congestion. | 2.6 | 2.4 | 2.7 | ||
| Work From Home PercentA higher percent of the population working from home indicates bandwidth requirements being more widely needed rather than consolidated to commercial portions of the city. | 11% | 11% | 14% | ||
| Households with DevicesA higher percentage of households with computing devices in the home indicates a higher level of infrastructure needed to support those households. | 92% | 94% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 84% | 88% | 90% | ||
| Households with BroadbandA higher percentage of households with a broadband connection (defined as speeds above 25 Mbps) indicates heavier usage needs within these households. | 48% | 71% | 75% | ||
| Broadband Usage vs. AvailabilityThis measures what percentage of households who have a broadband connection to their home actually have an active subscription to that service. | 48% | 71% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Green Castle ISP Report Card & Digital Connectivity Index
The ISP Report Card in Green Castle is C-, which is much worse than other cities. The local demand for broadband internet connectivity in Green Castle is high with a score of 39 / 100 in our Digital Connectivity Index. This means that internet service providers operating in Green Castle have done a poor job meeting the needs of its residents.
The Green Castle ISP Report Card evaluates the city on availability and speed metrics compared to other cities in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a city needs. Please see our ISP Report Card along with the Digital Connectivity Index above to evaluate how well the connectivity demand is met by the existing infrastructure.
84% of Green Castle households have an internet connection despite having 100.00% availability. 48% of households have fiber, cable, or DSL, 16% have satellite, 0% are still on dial-up, and 3% of households have internet but don’t pay for a subscription because it’s subsidized by the Affordable Connectivity Program.
As you can see in the table above, while 48% of households have a broadband connection such as fiber, cable or DSL available to their home, 48% subscribe to it. A very low number of Green Castle residents are taking advantage of the available internet infrastructure.
For more details, please visit our ISP Report Card and Digital Connectivity Index pages.
How do Neighboring Cities Compare to Green Castle?
- ISP Report Card: D+
- Digital Connectivity Index: 52 / 100
- ISP Report Card: D+
- Digital Connectivity Index: 60 / 100
- ISP Report Card: D+
- Digital Connectivity Index: 39 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 58 / 100
- ISP Report Card: D+
- Digital Connectivity Index: 53 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 86 / 100
- ISP Report Card: D+
- Digital Connectivity Index: 56 / 100
- ISP Report Card: D+
- Digital Connectivity Index: 50 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 83 / 100
How Much Speed does a Green Castle Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in Green Castle is 2.6, which is larger than the Iowa average of 2.4 and smaller than the national average of 2.7. Green Castle's average household income is $92,672 which is much higher than the Iowa average of $80,609 and higher than the national average of $90,606. Homes with more people living in them and with higher incomes tend to indicate more devices being used more often.
Green Castle also has 10% of its population enrolled in school between the 6th grade and college level, this is lower than the Iowa average of 16%. Additionally, 11% of residents work from home, which is lower than the 11% of residents in Iowa who work from home. This and other factors you can see above show us that the community of Green Castle has a low need for internet connectivity and speeds.
Compared to the rest of the country, Green Castle households are about average when it comes to technological engagement. 92% of households have some sort of computing device, 73% have desktops or laptops in the home, and 91% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.
Which Fiber Internet Providers are Available in Green Castle?
According to the most recently submitted data by internet service providers to the FCC, there are currently no fiber providers available in Green Castle, IA.
Which Cable Internet Providers are Available in Green Castle?
Mediacom Cable in Green Castle, IA
Mediacom offers Cable service to 38.0% of Green Castle homes. Across the city, Mediacom 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 Green Castle?
Centurylink DSL in Green Castle, IA
Centurylink offers DSL service to 78.0% of Green Castle homes. Across the city, Centurylink DSL is the only type of service available from the company, with speeds up to 76 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 10, with an average of 7.5 Mbps throughout the city.
Which Fixed Wireless and LTE Internet Providers are Available in Green Castle?
Nextlink Fixed Wireless in Green Castle, IA
Nextlink offers Fixed Wireless service to 100.0% of Green Castle homes. Across the city, Nextlink Fixed Wireless is the only type of service available from the company, with speeds up to 977 Mbps, with speeds from 300 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 100 and as high as 1,000, with an average of 970 Mbps throughout the city.
T-Mobile Home Internet Fixed Wireless in Green Castle, IA
T-Mobile Home Internet offers Fixed Wireless service to 100.0% of Green Castle homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 80 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 15 Mbps throughout the city.
US Cellular Fixed Wireless in Green Castle, IA
US Cellular offers Fixed Wireless service to 100.0% of Green Castle homes. Across the city, US Cellular Fixed Wireless is the only type of service available from the company, with speeds up to 20 Mbps, with speeds from 10 Mpbs up to 25 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 3.0, with an average of 2.3 Mbps throughout the city.
EarthLink Fixed Wireless in Green Castle, IA
EarthLink offers Fixed Wireless service to 75.3% of Green Castle homes. Across the city, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 25 Mbps
AT&T Fixed Wireless in Green Castle, IA
AT&T offers Fixed Wireless service to 75.3% of Green Castle homes. Across the city, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 25 Mbps
Rise Broadband Fixed Wireless in Green Castle, IA
Rise Broadband offers Fixed Wireless service to 44.0% of Green Castle homes. Across the city, Rise Broadband Fixed Wireless is the only type of service available from the company, with speeds up to 61 Mbps, with speeds from 50 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 10 and as high as 20, with an average of 12 Mbps throughout the city.
Which ISP Should You Choose in Green Castle?
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 Green Castle is US Cellular.
- The fastest internet provider should be Mediacom. Considering speed for the money and reliability in speeds, US Cellular may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Green Castle is T-Mobile Home Internet.
- Viasat, US Cellular, T-Mobile Home Internet, Nextlink, and HughesNet has the broadest coverage in Green Castle, and is most likely to cover your home. To find out exactly what's available at your home, please use our address search tool.
How does Green Castle compare to other cities with a similar population?
To see how Green Castle stacks up on the national level, it's useful to look at some other cities with similarly sized populations. Below you can see a list of these cities and how they compare to Green Castle's C- ISP Report Card and 39 / 100 Digital Connectivity Index.
- ISP Report Card: C-
- Digital Connectivity Index: 32 / 100
- ISP Report Card: B
- Digital Connectivity Index: 42 / 100
- ISP Report Card: D+
- Digital Connectivity Index: 24 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 60 / 100
- ISP Report Card: D
- Digital Connectivity Index: 79 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 80 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 37 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 30 / 100
- ISP Report Card: D-
- Digital Connectivity Index: 26 / 100
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