| ZIP Codes: | 26 ZIP Codes (16 Standard, 10 PO Box, 0 Unique) [See All] |
| Area Code: | 520 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:11:26 PM |
| Population: | 127,087 [See All] |
| FIPS: | 04003 |
| CBSA: | Sierra Vista-Douglas, AZ |
| Land Area: | 7,639 sq mi |
| Water Area: | 7 sq mi |
| Coordinates: | 31.7419, -109.9344 |
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127,087 residents live across 26 ZIPs covering 7,639 sq mi, served by 20 distinct USPS-recognized cities.
Population moved from 132,579 to 127,087 from 2014 to 2024 — a -4.1% change. 8 ZIPs gained residents, 14 lost.
The county's wealthiest ZIP 85650 (Sierra Vista, $91,654 median) and poorest ZIP 85638 (Tombstone, $37,604) are 15.9 miles apart — a 2.4× income gap across local geography.
Median home values vary 5.3× across this county — from $61,300 in 85605 (Bowie) to $327,000 in 85650 (Sierra Vista).
Density varies 1410× across the county — from 1 people/sq mi in 85632 (San Simon) to 1,309 in 85620 (Naco).
Educational attainment ranges from 1.3% bachelor's+ in 85608 (Douglas ) to 49.6% in 85613 (Fort Huachuca) — the breadth of educational profiles across the area.
Within Arizona, this is the #8 most populous of 16 counties and ranks #10 for median household income .
Weighted by population, the typical household earns about $61,568 across the county — reflecting what a typical resident sees, not a simple ZIP average.
27.9% of adults age 25+ hold a bachelor's degree or higher (25,429 of 91,127 reporting).
16 Standard delivery, 10 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 85635 | Sierra Vista | Standard | 34,193 | $61,580 | 99.1 | -4.6% |
| 85607 | Douglas | Standard | 17,191 | $43,351 | 708.5 | -0.2% |
| 85650 | Sierra Vista | Standard | 14,876 | $91,654 | 41.5 | 3.9% |
| 85615 | Hereford | Standard | 10,175 | $73,758 | 177.4 | 7.3% |
| 85602 | Benson | Standard | 10,019 | $53,008 | 973.6 | 12.4% |
| 85643 | Willcox | Standard | 8,476 | $57,903 | 2,205.3 | -5.1% |
| 85603 | Bisbee | Standard | 6,699 | $47,680 | 212.3 | -3.6% |
| 85613 | Fort Huachuca | Standard | 4,983 | $89,609 | 32.5 | -13.2% |
| 85616 | Huachuca City | Standard | 4,941 | $51,813 | 167.0 | -8.6% |
| 85608 | Douglas | PO Box | 2,804 | — | 0.0 | -45.2% |
| 85630 | Saint David | Standard | 1,939 | $52,146 | 147.7 | -26.8% |
| 85625 | Pearce | Standard | 1,917 | $47,500 | 349.5 | 19.7% |
| 85638 | Tombstone | Standard | 1,418 | $37,604 | 250.6 | -33.9% |
| 85626 | Pirtleville | PO Box | 1,332 | $49,519 | 1.4 | 53.6% |
| 85617 | Mc Neal | Standard | 1,094 | $43,967 | 209.2 | -19.2% |
| 85606 | Cochise | Standard | 1,066 | $59,306 | 168.6 | -19.7% |
| 85620 | Naco | PO Box | 988 | $57,738 | 0.8 | 11.8% |
| 85632 | San Simon | Standard | 861 | $52,917 | 927.3 | -2.9% |
| 85605 | Bowie | PO Box | 683 | $48,558 | 387.1 | 47.5% |
| 85610 | Elfrida | Standard | 576 | $34,375 | 438.1 | -45.8% |
| 85627 | Pomerene | PO Box | 430 | $72,917 | 0.0 | -57.4% |
| 85609 | Dragoon | PO Box | 426 | $78,779 | 141.4 | 10.9% |
| 85644 | Willcox | PO Box | — | — | 0.0 | — |
| 85655 | Douglas | PO Box | — | — | 0.0 | — |
| 85636 | Sierra Vista | PO Box | — | — | 0.0 | — |
| 85670 | Fort Huachuca | PO Box | — | — | 0.0 | — |