Oregon County Maps
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Oregon has 36 counties, a population of more than 4 million people, about 428 zip codes and 237 public school districts. Those counties vary widely in population, school enrollment, zip code coverage and local boundary structure. Multnomah County has the largest population in the state, while Wheeler County has the smallest. Browse the map, population, zip codes, school districts, county subdivisions and county list sections below to explore further. Or, simply start typing in the box below to go directly to that county.
Interactive Oregon County Map
This Oregon county map preview highlights population-by-county context, ZIP code coverage, school districts, and local boundary structure. Full statewide and county-level data packages are available when you need complete downloadable datasets. Click or tap any county to view its maps, trends and data.
Start with a free preview, or go straight to the full Oregon dataset .
Oregon Population By County
Oregon's population was over 4 million in 2020, up 406,182 (10.60%) residents from 2010. Multnomah County had the largest population in the state with 815,428 people. Washington and Clackamas Counties also stand out as major population centers. Wheeler County was the least populated area in Oregon with only 1,451 residents. The table below compares Oregon county populations and recent population trends.
The Most Populated Counties In Oregon
| County | Population | Trend (2010-2020) |
|---|---|---|
| Multnomah County | 815,428 | ▴ 10.89% |
| Washington County | 600,372 | ▴ 13.34% |
| Clackamas County | 421,401 | ▴ 12.08% |
| Lane County | 382,971 | ▴ 8.89% |
| Marion County | 345,920 | ▴ 9.70% |
| Download all county population data | ||
County populations reflect the latest state serving context (2020).
Oregon County Map With ZIP Codes
Oregon has about 428 zip codes statewide. Lane County contains the most zip codes, with 35. County-level zip code maps give a faster and clearer way to understand local coverage as zip boundaries can span county and municipal lines. The maps below highlight a few Oregon counties.
Oregon School Districts By County
Oregon has 237 public school districts with 738,045 students enrolled as of 2024. Lane County has the highest district count in the state. Multnomah County has the largest total school enrollment. Wheeler County posted the largest recent enrollment gain. The table below compares county level school district totals and recent enrollment trends across the state.
Largest School Districts in Oregon
| County | Districts | Enrollment | Trend |
|---|---|---|---|
| Lane County | 20 | 48,229 | ▾ 1.53% |
| Clackamas County | 17 | 97,129 | ▾ 0.43% |
| Douglas County | 16 | 15,971 | ▾ 1.80% |
| Marion County | 12 | 61,977 | ▾ 1.19% |
| Washington County | 11 | 95,005 | ▾ 0.64% |
| Download all school district data | |||
School district enrollment and trend values reflect the most recent state-level context (2024).
Oregon County Map With County Subdivisions
Oregon has about 212 county subdivisions statewide. These boundaries add another layer of local detail and help show how subdivision lines fit inside county boundaries. The previews below highlight a few counties with available subdivision map coverage.
Get the Full Oregon Data Package
The sections above provide a preview of Oregon county maps and county-level data. The full package includes complete statewide coverage with ready-to-use files for mapping, planning, and analysis.
Everything is organized to save hours of data collection, cleanup, and integration work.
- County map exports and boundary coverage for every county in Oregon
- Statewide GIS layers for ZIP codes, subdivisions, school districts, roads, water, and political boundaries
- Population, demographics, school, housing, and trend context aligned across counties
- Database files, map-ready exports, and documentation designed for faster research workflows
Includes GIS layers, maps, demographics, analytics, database files and planning tools.