85143 ZIP Code, San Tan Valley, AZ
85143 is a ZIP code in San Tan Valley, Arizona in Pinal County. It covers 31 square miles of land. The closest ZIP codes are 85140, 85142 and 85147. 44,444 people live here in 14,242 households. At about 1,421 people per square mile it has suburban density, and most homes are owner-occupied (80%). Median household income is $93,707, above the Arizona median of $79,964; 41% of households have children under 18.
Quick facts
- Mailing city: San Tan Valley, AZ
- County: Pinal County
- Land area: 31 sq mi
- Population: 44,444
- Median household income: $93,707
- Carrier routes: 20 (18,262 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 44,444 |
| Households | 14,242 |
| Median household income | $93,707 |
| Income per person | $35,206 |
| Median age | 37.4 |
| Homeowners | 80.1% |
| Median home value | $389,200 |
| Median rent | $2,074 |
| Bachelor's degree or higher | 22.2% |
| Average commute (minutes) | 36.2 |
| Households with kids under 18 | 40.6% |
| Moved in the past year | 13.7% |
| Below the poverty line | 8.2% |
| Broadband internet | 97.2% |
| Speak a non-English language at home | 14.5% |
Household income
| % of households | Value |
|---|---|
| <$10K | 3.6% |
| $10–15K | 1.8% |
| $15–25K | 1.2% |
| $25–35K | 4.9% |
| $35–50K | 8.7% |
| $50–75K | 15.9% |
| $75–100K | 17.1% |
| $100–150K | 26.5% |
| $150–200K | 12.1% |
| $200K+ | 8.1% |
Age
| % of all residents | Value |
|---|---|
| <10 | 13.9% |
| 10–19 | 13.8% |
| 20–24 | 6.4% |
| 25–34 | 12.8% |
| 35–44 | 16.6% |
| 45–54 | 13.1% |
| 55–64 | 9.5% |
| 65–74 | 8.2% |
| 75+ | 5.9% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 55.0% |
| Owned outright | 16.4% |
| Rented | 17.6% |
| Vacant | 11.0% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 97.5% |
| Townhome | 0.9% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 1.7% |
Businesses in 85143
349 business establishments with 3,057 employees (ZIP Codes Business Patterns 2023).
- Construction: 63
- Professional, Scientific, and Technical Services: 45
- Health Care and Social Assistance: 41
- Accommodation and Food Services: 38
- Administrative and Support and Waste Management and Remediation Services: 36
- Other Services (except Public Administration): 23
- Retail Trade: 22
- Transportation and Warehousing: 20
EDDM carrier routes
85143 has 20 USPS carrier routes with 18,262 residential and 169 business mailboxes. Open the EDDM route map.
Carrier routes in 85143
85143 has 20 USPS carrier routes (20 rural (R)) with 18,262 residential and 169 business mailboxes. Routes range from 751 homes (R039) to 1,432 homes (R036); the median route has 887 homes. The Census counted 14,242 households in 85143 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 0 |
| 500–749 | 0 |
| 750–999 | 17 |
| 1,000–1,499 | 3 |
| 1,500+ | 0 |
Best routes in 85143 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R026 — USPS business mailboxes 46, 831 homes
- Route R040 — USPS business mailboxes 32, 923 homes
- Route R061 — USPS business mailboxes 28, 768 homes
- Route R054 — USPS business mailboxes 23, 825 homes
- Route R009 — USPS business mailboxes 14, 967 homes
Select these 5 routes on the route map
Every carrier route in 85143
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R009 | Rural | 967 | 14 | $73,985 | — | — | — |
| R014 | Rural | 964 | 4 | $82,640 | — | — | — |
| R015 | Rural | 991 | 1 | $81,050 | — | — | — |
| R019 | Rural | 813 | 4 | $80,076 | — | — | — |
| R024 | Rural | 804 | 0 | $90,217 | — | — | — |
| R025 | Rural | 857 | 0 | $105,724 | — | — | — |
| R026 | Rural | 831 | 46 | $82,640 | — | — | — |
| R027 | Rural | 832 | 0 | $82,101 | — | — | — |
| R033 | Rural | 810 | 0 | $104,759 | — | — | — |
| R035 | Rural | 920 | 1 | $77,863 | — | — | — |
| R036 | Rural | 1,432 | 10 | $103,201 | — | — | — |
| R039 | Rural | 751 | 0 | $114,747 | — | — | — |
| R040 | Rural | 923 | 32 | $100,328 | — | — | — |
| R046 | Rural | 952 | 0 | $73,985 | — | — | — |
| R050 | Rural | 916 | 0 | $80,076 | — | — | — |
| R054 | Rural | 825 | 23 | $91,008 | — | — | — |
| R061 | Rural | 768 | 28 | $73,985 | — | — | — |
| R065 | Rural | 1,066 | 0 | $100,883 | — | — | — |
| R072 | Rural | 1,077 | 5 | $91,008 | — | — | — |
| R083 | Rural | 763 | 1 | $104,658 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 85143 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 85140 — San Tan Valley CDP, AZ (6.6 mi)
- 85142 — Queen Creek town, AZ (8.8 mi)
- 85147 — Sacaton CDP, AZ (12.5 mi)
- 85191 (12.5 mi)
- 85212 — Mesa city, AZ (13.1 mi)
- 85128 — Coolidge city, AZ (13.4 mi)
- 85298 — Gilbert town, AZ (13.4 mi)
- 85297 — Gilbert town, AZ (15 mi)
Areas that include 85143
- San Tan Valley, AZ ZIP codes — 3 ZIP codes
- Pinal County ZIP codes — 32 ZIP codes
- Arizona ZIP code data
Where it ranks
- No. 7 of 30: highest median household income in Pinal County
- No. 9 of 29: highest median home value in Pinal County
- No. 7 of 30: highest share of households with children in Pinal County
- No. 9 of 30: lowest median age in Pinal County
Mail every home in 85143
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 85143, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 85143 in?
- 85143 is a San Tan Valley, AZ mailing address. By land area, 79% lies inside San Tan Valley and 6% lies inside Florence; the rest is outside any Census-defined city or community.
- What county is 85143 in?
- 85143 is in Pinal County.
- What is the population of 85143?
- About 44,444 people (±2,619), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 41,720.
- What is the median household income in 85143?
- $93,707 (±$7,802), compared with $79,964 for Arizona as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 85143?
- 20 USPS carrier routes with 18,262 residential and 169 business mailboxes (18,432 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 85143?
- The closest, measured center to center: 85140 (6.6 mi, San Tan Valley), 85142 (8.8 mi, Queen Creek), 85147 (12.5 mi, Sacaton), 85191 (12.5 mi), 85212 (13.1 mi, Mesa) and 85128 (13.4 mi, Coolidge).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.