In Jefferson County there are 4 residential Fiber providers covering 45.92% of the county. The average home can get speeds up to 4,344 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all Fiber internet providers in Jefferson County, MO.
To see availability maps for all providers including fiber, cable, DSL, and more in Jefferson County, MO please click below.
Jefferson County, MO Availability Maps
Fiber Internet Service Providers in Jefferson County
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Jefferson County are not shown.
Jefferson County Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Jefferson County is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 45.92% of Jefferson County. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in Jefferson County above to see who has service at your home.
How fast is fiber internet in Jefferson County?
The map below shows maximum fiber internet speeds by area in Jefferson County.
Fiber Internet Speed Key
The average Jefferson County home can get up to 4,344 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 5,000 Mbps, which 38.39% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 7.53% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Jefferson County.
Fiber internet speeds tend to be faster in the east parts of Jefferson County, and slower in the southwest areas of the county.
Is fiber the fastest internet I can get in Jefferson County?
The fastest internet for you may vary based on where in Jefferson County you live. In general, cable competes most often with fiber in the county.
- Fiber is the fastest internet type for 45.62% of Jefferson County homes.
- Cable is fastest for 45.94% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 8.15%.
- Satellite internet may be the only option for less than 1% of Jefferson County homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Jefferson County, along with details on where in Jefferson County and at what speeds.
EarthLink Fiber in Jefferson County, MO
EarthLink fiber coverage
About 41.78%, or 94,729 people, have EarthLink fiber internet available to them in the county. The company covers the north, northeast, east, southeast, central, northwest, west, and south Jefferson County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in some of Jefferson County.
EarthLink fiber download speeds
EarthLink is one of the fastest when comparing download speeds to all other internet providers in Jefferson County. Versus other fiber providers in the area, EarthLink fiber is one of the fastest. There are 2 different maximum speeds throughout Jefferson County. The fastest plan anyone in Jefferson County can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Jefferson County customers is up to 4,675 Mbps.
Show all download speeds
- 91.9% up to 5,000.0 Mbps
- 8.1% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Jefferson County download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Jefferson County fiber providers. EarthLink offers 2 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Jefferson County is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, EarthLink customers can get speeds up to 4,675 Mbps.
Show all upload speeds
- 91.9% up to 5,000.0 Mbps
- 8.1% up to 1,000.0 Mbps
AT&T Fiber in Jefferson County, MO
AT&T fiber coverage
About 41.78%, or 94,729 people, have AT&T fiber internet available to them in the county. The company covers the north, northeast, east, southeast, central, northwest, west, and south Jefferson County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in some of Jefferson County.
AT&T fiber download speeds
AT&T is one of the fastest when comparing download speeds to all other internet providers in Jefferson County. Versus other fiber providers in the area, AT&T fiber is one of the fastest. There are 2 different maximum speeds throughout Jefferson County. The fastest plan anyone in Jefferson County can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Jefferson County customers is up to 4,675 Mbps.
Show all download speeds
- 91.9% up to 5,000.0 Mbps
- 8.1% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Jefferson County download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Jefferson County fiber providers. AT&T offers 2 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Jefferson County is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, AT&T customers can get speeds up to 4,675 Mbps.
Show all upload speeds
- 91.9% up to 5,000.0 Mbps
- 8.1% up to 1,000.0 Mbps
Spectrum Fiber in Jefferson County, MO
Spectrum fiber coverage
About 4.44%, or 10,075 people, have Spectrum fiber internet available to them in the county. The company covers the southeast, north, southwest, south, northwest, central, and east Jefferson County area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Jefferson County.
Spectrum fiber download speeds
Spectrum is above average when comparing download speeds to all other internet providers in Jefferson County. Versus other fiber providers in the area, Spectrum fiber is one of the slowest. There are no different maximum speeds throughout Jefferson County. The fastest plan anyone in Jefferson County can order from Spectrum goes up to 1,000 Mbps, and all Jefferson County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In Jefferson County download speeds tend to be faster than than upload speeds for Spectrum fiber. Compared to other ISPs, Spectrum is above average where upload speeds are concerned, and below average compared to other Jefferson County fiber providers. Spectrum offers 2 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Jefferson County is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 500 Mbps. On average, Spectrum customers can get speeds up to 966 Mbps.
Show all upload speeds
- 93.1% up to 1,000.0 Mbps
- 6.9% up to 500.0 Mbps
Lightwave Communications Fiber in Jefferson County, MO
Lightwave Communications fiber coverage
About 1.01%, or 2,284 people, have Lightwave Communications fiber internet available to them in the county. The company covers the southeast and south Jefferson County area. Lightwave Communications is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Jefferson County.
Lightwave Communications fiber download speeds
Lightwave Communications is above average when comparing download speeds to all other internet providers in Jefferson County. Versus other fiber providers in the area, Lightwave Communications fiber is one of the slowest. There are no different maximum speeds throughout Jefferson County. The fastest plan anyone in Jefferson County can order from Lightwave Communications goes up to 1,000 Mbps, and all Jefferson County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Lightwave Communications fiber upload speeds
In Jefferson County download speeds tend to be equal to than upload speeds for Lightwave Communications fiber. Compared to other ISPs, Lightwave Communications is above average where upload speeds are concerned, and below average compared to other Jefferson County fiber providers. Lightwave Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Jefferson County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Jefferson County Fiber by Area
This information is most helpful to those looking for homes or considering moving to Jefferson County or any of the areas nearby.
How does fiber internet in Jefferson County compare to the rest of Missouri?
Fiber internet speeds in Jefferson County are much faster versus the average speeds in Missouri: 0.00 Mbps in Missouri versus 4,344 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in Missouri is 0.00% versus 45.92% in Jefferson County.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Jefferson County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber internet look like in other counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Monroe County, IL: more fiber coverage, slower speeds
- Franklin County, MO: less fiber coverage, slower speeds
- Gasconade County, MO: more fiber coverage, slower speeds
- Washington County, IL: less fiber coverage, slower speeds
- Osage County, MO: less fiber coverage, slower speeds
- Jefferson County, IL: more fiber coverage, faster speeds
- Miller County, MO: less fiber coverage, slower speeds
- Wayne County, IL: more fiber coverage, slower speeds
- Morgan County, MO: more fiber coverage, slower speeds
- Edwards County, IL: more fiber coverage, faster speeds
Counties with Similar Populations
- Cumberland County, ME: more fiber coverage, slower speeds
- Ottawa County, MI: more fiber coverage, faster speeds
- Onslow County, NC: more fiber coverage, slower speeds
- Montgomery County, AL: more fiber coverage, faster speeds
- Hinds County, MS: more fiber coverage, faster speeds
- Erie County, PA: less fiber coverage, slower speeds
- Elkhart County, IN: more fiber coverage, faster speeds
- Durham County, NC: more fiber coverage, faster speeds
- Dauphin County, PA: more fiber coverage, slower speeds
- Cumberland County, PA: more fiber coverage, slower speeds