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San Tan Valley, AZ

Internet Providers in 85140

Cox Internet has reported coverage near ZIP 85140. Confirm your address before ordering online.

Check Cox Availability

Compiled by the InternetProviders.ai research desk from FCC broadband filings and our coverage database; last checked October 20, 2026.

FCC data as of June 20252 providers reported

Review 2 providers with reported coverage near ZIP code 85140, then enter your street address to confirm service and plan details.

Quick Answer

2 internet providers have FCC-reported coverage near ZIP code 85140 in San Tan Valley, AZ. Reported providers include Cox Internet, CenturyLink. Enter your address above, then confirm service, plans, and pricing before ordering.

Providers with Reported Coverage in 85140

Coverage data from FCC Broadband Data Collection. Actual availability may vary by exact address.

Other services to check at your address

T-Mobile, Starlink, and other address-qualified services are not counted as locally reported providers for ZIP 85140. Availability varies by address — confirm eligibility before ordering.

ZIP 85140 Internet at a Glance

  • Reported technology mix: 1 fiber, 1 cable, 1 DSL, 0 5G/wireless (a provider reporting more than one technology is counted in each)
  • Fiber evidence: found in the sampled area; confirm availability at your address
  • Sample coverage: 11/19 sampled grid cells contained admitted FCC records
2
Providers reported
FCC BDC
Coverage source
Required
Address confirmation

ZIP code 85140 is located in San Tan Valley, AZ (population 99,894). 2 internet providers have reported coverage signals in the sampled area, including 1 provider with reported fiber infrastructure. For full city-wide coverage details, see our San Tan Valley internet providers page.

Coverage by Technology in 85140

1
Fiber Provider
50% of options
1
Cable Provider
50% of options
1
DSL Provider
50% of options

Percentages can add up to more than 100%: a provider reporting more than one technology is counted in each.

Coverage in Your Area (85140)

Based on sampled FCC broadband records around ZIP code 85140. These figures describe the sample, not every address in the ZIP.

Sampled Cells with Records
58%
11 of 19 sampled grid cells contained admitted records
Reported Max Download
2 Gbps
across all filers in the sampled infrastructure data
Reported Max Upload
1 Gbps
across all filers in the sampled infrastructure data
Low-Latency Flag
Reported
present in sampled FCC records

Counted providers with reported infrastructure near 85140:

Cox Internet (Fiber)Cox Internet (Cable)CenturyLink (DSL)

Other filers in the sampled FCC records near 85140:

Not included in the provider total above because they are not matched to a provider listed here. Availability at your address is not confirmed.

Quantum Fiber (Fiber)Mediacom Xtream (Cable)

Source: FCC Broadband Data Collection, H3 hex-level analysis, June 2025

Key Findings

  • 2 internet providers have FCC-reported coverage near ZIP code 85140
  • Reported fiber infrastructure (1 provider): Cox Internet
  • FCC records found in 58% of sampled H3 grid cells
  • Exact service, plan eligibility, speeds, and pricing require an address check

Compare Providers in Your Area

Order by Phone

Call to order service or check availability at your address in 85140

FCC-reported internet coverage levels by technology for ZIP 85140
FCC-reported coverage levels by technology near ZIP 85140. Levels count the providers reporting each technology in the sampled area; confirm service at your address.

FCC Broadband Data Collection records dated June 2025 for the sampled area near 85140 show Cox Internet with a Fiber label and CenturyLink under the generic label Internet, a record that does not name the connection type. Those listings describe an area rather than one lot. Before choosing, give each company the complete street address of the house, with a unit number if one applies, and ask what it lists there.

Household and housing estimates for ZIP Code Tabulation Area 85140 and Arizona: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates. ZCTAs approximate ZIP Code areas, so boundaries can differ.
MeasureZCTA 85140Arizona
Households with any internet subscription96%92%
Households with cable, fiber or DSL service85%76%
Households with only a cellular data plan8%11%
Households with no internet access1%6%
Renter-occupied homes14%33%
Homes in buildings with 20 or more units0%9%
Mobile homes6%9%
Homes built in 2010 or later41%14%
Workers who usually work from home18%18%

Ordering service for a house built since 2010

Construction from 2010 onward accounts for 41% of housing units in ZCTA 85140, far more than the 14% Arizona share. If your home is one of those recent builds and a provider's lookup returns nothing, phone the company, read out the parcel or lot number for the property, and ask for a manual search under it.

Before booking an installation, put these to the builder or seller:

  • Which companies were arranged for the development when the homes went up?
  • Were jacks or conduit placed in the walls, and in which rooms do they end?
  • Does an outside line already reach the house, or would one need to be run?

Wired plans in a ZCTA of detached houses

Most households here report a wired plan: 85% of households in ZCTA 85140 list a cable, fiber optic or DSL subscription, a higher share than Arizona's. For a detached house, turn that into a practical call: ask Cox Internet whether its line already reaches your lot, and ask CenturyLink to name the connection type it would install at the address.

Should the FCC National Broadband Map show something for your lot that a provider contradicts, open that location on the map and submit an availability challenge. When you are ready to weigh the listed companies, compare internet providers, and San Tan Valley internet providers is the city hub.

Questions about service at a newer San Tan Valley house

Who should I ask about in-wall wiring in a house finished in recent years?

Start with the builder or the previous owner, and ask what was run through the walls and where each run ends. Then ask the provider whether a technician must visit before service starts.

My detached house already has a line from the street. What should I confirm with Cox Internet and CenturyLink?

Ask each company whether that line belongs to it and whether a new order at your address could use it. Ask CenturyLink which connection type it would provide there.

What do I do when my new address will not come up in a provider's tool?

Call the company, give the address exactly as it appears on your property records, and ask whether the home can be found by its lot details. Note who you spoke with and the date.

Site editorial standards: George Olfson. Data methodology: Pablo Mendoza. Read our methodology or report a correction.

How We Rank Providers & Where the Data Comes From

Provider names and sampled advertised technology and speed evidence on this page come from the FCC National Broadband Map and the FCC Broadband Data Collection (June 2025), sampled at H3 grid-cell granularity. ZIP results are shortlist evidence, not address-level serviceability. National catalog plans are excluded until market eligibility is proven. Confirm service, the current offer, and installation terms at the exact address. See our full ranking methodology.

See All Providers in San Tan Valley

View detailed coverage, provider comparisons, and more options for the San Tan Valley, AZ area.

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Sources & Methodology

This guide is based on data from FCC broadband filings and provider plan details. Pricing, speeds, and availability vary by location, so confirm them with the provider before ordering. For a detailed explanation of our data collection and scoring process, see our methodology page.

Last verified: October 2026. InternetProviders.ai is an independent resource. We may earn commissions from partner links. Commissions never change a provider's rating or the plan facts we list. See our methodology for details.

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