Santa Cruz County, Arizona
County seat: Nogales · Population 50,020 (2025) · 1,236 sq mi
Santa Cruz County is the 12th most populous of Arizona's 15 counties, with 50,020 people (2025 estimate). Its county seat is Nogales. The map shows its 2 cities and towns and the 2 neighboring counties.
Santa Cruz County facts
- County seat
- Nogales
- Population (2025 estimate)
- 50,020 +4.9% since 2020
- Land area
- 1,236 sq mi 15th largest of 15
- Water area
- 1 sq mi
- Population density
- 41 per sq mi
- Established
- 1899
- Named after
- Santa Cruz River river in Pinal, Pima and Santa Cruz counties in Arizona, United States
- Largest city
- Rio Rico 22,017
- Median household income
- $55,217
- Cities and towns
- 2 plus 8 CDPs
- ZIP codes
- 9
- Time zone
- Mountain (no DST)
- FIPS code
- 04023
Cities and towns in Santa Cruz County
Santa Cruz County has 2 incorporated cities, towns and villages. Populations count the people living inside Santa Cruz County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Nogales (county seat) | City | 19,495 | |
| Patagonia | Town | 771 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Rio Rico | 22,017 | |
| Tubac | 1,294 | |
| Sonoita | 663 | |
| Elgin | 349 | |
| Tumacacori-Carmen | 207 | |
| Kino Springs | 173 | |
| Beyerville | 61 | |
| Amado | 53 |
ZIP codes in Santa Cruz County
9 ZIP codes reach into Santa Cruz County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 85611 also Pima and Cochise counties
- 85614 also Pima County
- 85621
- 85624
- 85637 also Pima County
- 85640
- 85645 also Pima County
- 85646
- 85648
Population of Santa Cruz County, 2020–2025
Santa Cruz County grew by 2,351 people (+4.9%) between April 2020 and July 2025: 937 more births than deaths and a net gain of 1,398 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 47,711 |
| 2021 | 47,956 |
| 2022 | 48,600 |
| 2023 | 49,204 |
| 2024 | 49,765 |
| 2025 | 50,020 |
Neighboring counties
- Pima County northwest · 1,074,685 people
- Cochise County east · 126,332 people
Printable Santa Cruz County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (73 KB)
- PNG (2400 px) (54 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
Back to the Arizona county map with all 15 counties. Found an error? Tell us.