Internet in San Diego, California
Fiber is available at 44.6% of the 294,670 homes and businesses the FCC counts in San Diego, and wired broadband of at least 100/20 Mbps at 97.3%. 51.7% of locations have a choice of two or more wired providers at that speed; at 45.6% there is only one.1
FCC National Broadband Map, availability as of June 30, 2026 (data revised November 10, 2026), as reported by providers.
San Diego in California
San Diego is divided between two cable companies whose networks barely overlap: Spectrum reports service at 50.7% of the city's homes and businesses and Cox at 46.6%. Which one you get depends on the address. The second wire, where there is one, is almost always AT&T fiber, and the city's fiber share has risen from 30.2%2 in 2022 to 44.6%1.
Who reports service in San Diego
The FCC counts 294,6701 homes and businesses, or broadband serviceable locations, inside San Diego's city limits as drawn for the 2020 Census. The table lists the providers that report service to them as of June 30, 2026 (file revision of November 10, 2026), with the share of locations each covers. "Reported available" means the provider says it can install standard service within ten business days; the figures can be challenged on the FCC map.
| AT&T | Fiber DSL Licensed wireless | 91.0% | 53.7% | 5 Gbps | 1.1% |
|---|---|---|---|---|---|
| T-Mobile | Licensed wireless | 75.3% | 25.1% | 100 Mbps | – |
| Verizon | Licensed wireless | 69.3% | 33.8% | 1 Gbps | – |
| Spectrum | Fiber Cable | 50.7% | 50.7% | 1 Gbps | 27.9% |
| Cox | Fiber Cable | 46.6% | 46.6% | 2 Gbps | 16.5% |
| San Diego Broadband | Fixed wireless | 26.5% | 26.5% | 750 Mbps | – |
| GeoLinks | Licensed wireless | 1.1% | 1.0% | 1 Gbps | – |
| Google Fiber | Fixed wireless | 0.3% | 0.3% | 1 Gbps | – |
| Wyyerd Connect LLC | Fiber | 0.2% | 0.2% | 8 Gbps | – |
| Kwikbit | Fixed wireless | 0.1% | 0.1% | 1 Gbps | – |
| Astound | Fiber | 0.0% | 0.0% | 5 Gbps | 0.0% |
Source: FCC, National Broadband Map, data as of June 30, 2026. Share of the area's broadband serviceable locations where the provider reports service as of June 30, 2026. "Only wired option" is the share of locations where it is the single wired provider at 100/20 Mbps. Provider-reported and challengeable; speeds are advertised maximums, not measured; no prices. Satellite providers (Starlink, HughesNet, Viasat) report service at nearly every location and are left out of the table.
Three groups stand out. AT&T reaches the most locations, with a mix of fiber, older DSL lines and fixed wireless. Spectrum and Cox are the cable networks, and between them almost every address has cable. The mobile carriers and San Diego Broadband, a fixed wireless provider, make up most of the rest of the list.
Spectrum or Cox: the address decides
Cable is reported at 94.8% of San Diego's locations, but no single cable company comes close to that. Spectrum reports service at 50.7% and Cox at 46.6%1, shares that add up to roughly the citywide cable figure. The city is effectively split into a Spectrum area and a Cox area, and a move across town can mean a change of cable company.
In both areas the cable company is often the only fast wire. Spectrum is the only wired provider offering 100/20 Mbps at 27.9% of the city's locations, Cox at 16.5%. Those two groups make up almost all of the 45.6% of locations with a single wired option at that speed, the 77th highest share among the 343 cities of 100,000 or more. AT&T is the sole wired option at only 1.1%1.
| Area | Fiber available | One wired choice | Two or more wired choices | Gigabit (1,000/100) |
|---|---|---|---|---|
| San Diego, California | 44.6% | 45.6% | 51.7% | 63.1% |
| Chula Vista, California | 72.5% | 27.6% | 69.9% | 95.4% |
| Los Angeles, California | 51.9% | 42.0% | 54.3% | 53.3% |
| San Jose, California | 43.9% | 47.6% | 51.3% | 96.2% |
| San Francisco, California | 60.8% | 27.9% | 71.1% | 79.6% |
| California | 47.8% | 43.2% | 49.9% | 67.4% |
| United States | 62.6% | 36.6% | 55.6% | 72.3% |
Source: FCC, National Broadband Map, data as of June 30, 2026. FCC file revision of November 10, 2026. Shares are of broadband serviceable locations (homes and businesses), not people.
Next door in Chula Vista, Cox alone reports service at 96.4% of locations and fiber reaches 72.5%. San Diego's 51.7% with two or more wired choices is close to California's 49.9% and below the national 55.6%1.
Fiber: one large network and many small ones
Fiber from any provider reaches 44.6% of San Diego's locations, the 76th lowest share among large cities and below California's 47.8%. AT&T reports fiber at 43.0% of locations; Cox reports fiber at 2.2% and Spectrum at 0.4%1, alongside their cable lines.
The count of fiber companies tells a different story from the coverage. 8 providers report fiber somewhere in the city, tied for 20th highest among large cities, yet only 1.2% of locations have two or more of them. Apart from AT&T, Cox and Spectrum, each reports fiber at a small number of locations. Wyyerd Connect, for example, reports fiber at 657 locations with advertised downloads up to 8 Gbps. Google Fiber appears in the San Diego data, but its 8541 locations are reported as fixed wireless, not fiber.
What changed since 2022
Fiber coverage rose by 14.5 percentage points between June 30, 2022 and June 30, 2026, and the share of locations with two or more wired choices at 100/20 Mbps rose from 42.1% to 51.7%. The largest jump was in speed. Gigabit service with uploads of at least 100 Mbps (the FCC's 1,000/100 tier) went from 28.9% of locations to 63.1%, and a fastest advertised download of 2 Gbps or more from 20.6%2 to 62.6%. AT&T advertises up to 5 Gbps on fiber and Cox up to 2 Gbps1.
Source: FCC, National Broadband Map, data as of June 30, 2022; FCC, National Broadband Map, data as of December 31, 2025; FCC, National Broadband Map, data as of June 30, 2026. Shares of broadband serviceable locations in each FCC release (latest revision of each); the small number is the change in percentage points since June 30, 2022. The FCC's count of locations is updated with each release, so shares are compared rather than counts.
Show the numbers
| Measure | June 30, 2022 | December 31, 2025 | June 30, 2026 | Change (points) |
|---|---|---|---|---|
| Fiber available | 30.2% | 43.3% | 44.6% | 14.5 pts |
| Gigabit (1,000/100) | 28.9% | 64.2% | 63.1% | 34.3 pts |
| Wired 100/100 Mbps | 30.2% | 63.9% | 62.9% | 32.8 pts |
| Two or more wired choices | 42.1% | 50.5% | 51.7% | 9.6 pts |
Symmetrical wired service of 100/100 Mbps or more is now reported at 62.9% of locations, well beyond the fiber footprint, so some cable offers in the city also report uploads of 100 Mbps or more. The most recent half-year changed little: since December 31, 2025, fiber rose 1.3 percentage points and the gigabit share fell 1.1 percentage points1. All of these are maximum speeds advertised by providers, not measurements.
Fixed wireless: the carriers and a local network
Fixed wireless is the other alternative to cable. T-Mobile reports home internet at 75.3% of locations, with an advertised maximum of 100 Mbps, and Verizon at 69.3%, with 100/20 Mbps at 33.8%. The share of locations where licensed fixed wireless reaches 100/20 Mbps went from 7.9% in 2022 to 48.8%, and the number of licensed fixed wireless providers from 32 to 51.
San Diego Broadband reports an unlicensed fixed wireless network at 26.5% of locations, all at 100/20 Mbps or more, with advertised downloads up to 750 Mbps1. Fixed wireless capacity is shared on each tower or antenna, so providers decide sign-ups address by address; the FCC figures show where service is reported, not where every home could join at once.
A small share with no fast wire
Wired 100/20 Mbps service is reported at 97.3% of locations. The rest is small in share but unusual for a large city. 1,252 locations are unserved under the federal BEAD definition, without reliable service of even 25/3 Mbps; by share, San Diego ranks tied for 20th highest among large cities. At 758 locations no wired or fixed wireless provider reports any service, so satellite is the only option; that share ranks tied for 8th highest, and it was 0.0%2 in 2022. At another 2,2751 locations fixed wireless is the only way to get 100/20 Mbps. The unserved share has not changed since 2022.
Fewer households without a subscription
Census figures count households, not locations, and come from a survey. In the 2025 American Community Survey, 3.2% of San Diego households had no internet subscription (margin of error ±0.6 percentage points), down from 7.2% in 2019 (±0.7 percentage points5); the ranges do not overlap. 84.4% subscribed to cable, fiber or DSL and 10.2%4 relied only on a cellular data plan.
Source: FCC, National Broadband Map, data as of June 30, 2026; Census Bureau, American Community Survey 2025 1-year detailed tables. Availability is a share of locations as of June 30, 2026 (FCC); subscriptions are a share of households from the American Community Survey, 2025 (whiskers: 90% margin of error). Different units and dates: read the gap as a sign, not an exact number.
Show the numbers
| Measure | Share | MOE |
|---|---|---|
| Wired 100/20 Mbps available (FCC, share of locations) | 97.3% | |
| Households subscribing to cable, fiber or DSL (Census) | 84.4% | ±1.0 |
| Households relying only on a cellular data plan | 10.2% | ±0.9 |
| Households with no internet subscription | 3.2% | ±0.6 |
The California page covers every county, including San Diego County, and the cities around San Diego.
Questions about internet in San Diego
What internet providers are available in San Diego?
As of June 30, 2026, the widest wired service is reported by AT&T (91.0% of locations, fiber and DSL and licensed fixed wireless), Spectrum (50.7%, cable) and Cox (46.6%, cable). T-Mobile (75.3%) and Verizon (69.3%) report 5G or LTE home internet, and San Diego Broadband reports a fixed wireless network at 26.5%1. Satellite is reported everywhere.
Do I get Cox or Spectrum in San Diego?
Usually one or the other, not both. Together the two cable networks reach 94.8%1 of locations, and their footprints barely overlap. The FCC map shows which one reports service at a specific address.
Is fiber internet available in San Diego?
At 44.6% of locations, against 47.8% across California and 62.6% nationally. AT&T accounts for nearly all of it, reporting fiber at 43.0%1 of the city's locations.
How many internet providers are there in San Diego?
19 providers report wired or fixed wireless service somewhere in the city, 5th highest among the 343 largest US cities. At a single address the number is much smaller: 45.6%1 of locations have exactly one wired provider offering 100/20 Mbps.
Checking one address in San Diego
The figures on this page describe the whole area. Which providers report service at a single home or apartment is shown only on the FCC's own map: search the address at broadbandmap.fcc.gov. If a provider is listed there but cannot actually connect you within ten business days, or the location is missing or misplaced, the map has a button to file a challenge; providers must respond, and corrections flow into later releases. Prices and plans are not part of the FCC data: each provider must show them on its broadband facts label at the point of sale.
More on internet in California
The state picture, county by county: internet in California. Other large cities in the state: Los Angeles, San Jose, San Francisco, Fresno, Sacramento, Long Beach, Oakland, Bakersfield, Anaheim, Stockton, Riverside and Irvine. Compare San Diego with any other city or state in the comparison tool.
Sources
- FCC, National Broadband Map, data as of June 30, 2026; Availability as of June 30, 2026; released November 10, 2026. broadbandmap.fcc.gov
- FCC, National Broadband Map, data as of June 30, 2022; Availability as of June 30, 2022; released May 10, 2024. broadbandmap.fcc.gov
- FCC, National Broadband Map, data as of December 31, 2025; Availability as of December 31, 2025; released November 3, 2026. broadbandmap.fcc.gov
- Census Bureau, American Community Survey 2025 1-year detailed tables; 2025 (calendar-year sample); released October 29, 2026. api.census.gov
- Census Bureau, American Community Survey 2019 1-year detailed tables; 2019. api.census.gov
Margins of error (±) are at the 90% confidence level. A difference is called significant only when it passes the Census Bureau's test at that level. How every figure is built: methodology. Found an error? Write to [email protected]; corrections are listed on the updates page.