La Paz County, Arizona
County seat: Parker · Population 16,711 (2025) · 4,497 sq mi
La Paz County is the 14th most populous of Arizona's 15 counties, with 16,711 people (2025 estimate). Its county seat is Parker. The map shows its 2 cities and towns and the 7 neighboring counties.
La Paz County facts
- County seat
- Parker
- Population (2025 estimate)
- 16,711 +1% since 2020
- Land area
- 4,497 sq mi 13th largest of 15
- Water area
- 14 sq mi
- Population density
- 4 per sq mi
- Established
- 1983
- Named after
- La Paz ghost town in La Paz County, Arizona
- Largest city
- Parker 3,394
- Median household income
- $49,478
- Cities and towns
- 2 plus 15 CDPs
- ZIP codes
- 8
- Time zone
- Mountain (no DST)
- FIPS code
- 04012
Cities and towns in La Paz County
La Paz County has 2 incorporated cities, towns and villages. Populations count the people living inside La Paz County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Parker (county seat) | Town | 3,394 | |
| Quartzsite | Town | 2,388 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Cienega Springs | 1,958 | |
| Bouse | 1,203 | |
| Bluewater | 897 | |
| Parker Strip | 861 | |
| Brenda | 780 | |
| Salome | 730 | |
| Ehrenberg | 697 | |
| La Paz Valley | 579 | |
| Vicksburg | 555 | |
| Wenden | 405 | |
| Cibola | 245 | |
| Poston | 105 | |
| Sunwest | 45 | |
| Alamo Lake | 0 | |
| Utting | 0 |
ZIP codes in La Paz County
8 ZIP codes reach into La Paz County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 85325
- 85328
- 85334
- 85344
- 85346
- 85348
- 85357
- 85371
Population of La Paz County, 2020–2025
La Paz County grew by 157 people (+1%) between April 2020 and July 2025: 1,207 more deaths than births and a net gain of 1,324 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 16,562 |
| 2021 | 16,358 |
| 2022 | 16,460 |
| 2023 | 16,615 |
| 2024 | 16,670 |
| 2025 | 16,711 |
Neighboring counties
- Yuma County south · 224,449 people
- Mohave County north · 228,102 people
- Riverside County, California west · 2,544,916 people
- Imperial County, California southwest · 181,411 people
- Maricopa County east · 4,689,558 people
- San Bernardino County, California northwest · 2,224,091 people
- Yavapai County northeast · 252,552 people
Printable La Paz 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) (90 KB)
- PNG (2400 px) (85 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.
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