County outline
Where Douglas County is located
Area breakdown
Land accounts for 98.1% of Douglas County’s measured area and water for 1.9%. Its combined area converts to 13,294.3 square kilometers or approximately 3,285,093 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 5,035.755 | 13,042.546 | 3,222,883.2 |
| Water | 97.203 | 251.755 | 62,209.9 |
| Total | 5,132.958 | 13,294.3 | 3,285,093.1 |
How Douglas County compares
By original Census land area, Douglas County ranks #5 of 36 in Oregon and #77 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 2.757 times the Oregon county-equivalent median of 1,826.2 square miles. It accounts for 5.2% of the combined county land area in the state.
See the complete Oregon ranking · What counts as a county equivalent?
Population and density of Douglas County
The Census Bureau estimates that 111,951 people lived in Douglas County on July 1, 2025. That ranks #578 of 3,222 county equivalents nationally and #9 of 36 in Oregon. Since the April 1, 2020 estimates base of 111,202, the population has grown by 749 (+0.7%), compared with +0.9% for Oregon as a whole.
With 5,035.8 square miles of land, that is 22 people per square mile (8.6 per km²), placing Douglas County #2,238 nationally for density and #20 in Oregon. The median county equivalent has 47 people per square mile; the Oregon median is 25. Put another way, there are about 29 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 111,294 | 112,185 | 112,247 | 112,442 | 112,351 | 111,951 |
| Change | — | +891 | +62 | +195 | −91 | −400 |
U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.
Cities and towns in Douglas County
12 incorporated places lie at least partly in Douglas County. Together they are home to 52,849 people (47.2%); the other 59,102 (52.8%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Roseburg city, with 23,693 residents in the county. Among places with at least 1,000 residents in 2020, Yoncalla city grew fastest since then (+1.4%).
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Roseburg cityCounty seat | 23,693 | +0.2% | 10.8 |
| Sutherlin city | 8,635 | +1.4% | 6.112 |
| Winston city | 5,680 | +0.6% | 2.761 |
| Reedsport city | 4,271 | −1% | 2.07 |
| Myrtle Creek city | 3,481 | +0.3% | 2.499 |
| Canyonville city | 1,659 | +1.2% | 1.06 |
| Riddle city | 1,218 | +0.5% | 0.635 |
| Drain city | 1,190 | +1% | 0.633 |
| Yoncalla city | 1,029 | +1.4% | 0.672 |
| Oakland city | 943 | +1% | 0.73 |
| Glendale city | 867 | +0.7% | 0.392 |
| Elkton city | 183 | +1.1% | 0.232 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Douglas County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Douglas County is a central county of the Roseburg, OR Micropolitan Statistical Area. Douglas County is the area’s only county equivalent, so the micro area has the same 5,035.8 square miles of land. By combined land it ranks #20 of 542 micropolitan areas, and #22 by population.
ZIP codes
30 ZIP Code Tabulation Areas have land in Douglas County; 26 of them have most of their land inside the county, and the others mainly cover neighboring areas.
974109741697417974249742997432974359743697441974429744397447974579745997462974679746997470974719747397479974819748497486974939749497495974969749997731
ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.
Counties bordering Douglas County
Douglas County shares a land border with 6 county equivalents. It has more land than 5 of them. The largest neighbor is Klamath County (5,949.9 mi²) and the smallest is Coos County (1,596.1 mi²). Together with its neighbors, Douglas County forms a block of 23,186.1 mi² of land, of which it holds 21.7%.
| Bordering county equivalent | Land mi² | Size vs. Douglas | Compare |
|---|---|---|---|
| Klamath County | 5,949.9 | 1.2× larger | Compare |
| Lane County | 4,554.1 | 1.1× smaller | Compare |
| Jackson County | 2,783.3 | 1.8× smaller | Compare |
| Josephine County | 1,638.6 | 3.1× smaller | Compare |
| Curry County | 1,628.4 | 3.1× smaller | Compare |
| Coos County | 1,596.1 | 3.2× smaller | Compare |
How big is Douglas County compared with U.S. states?
Douglas County has more land than 3 of the 50 states. It is about 1 times the land area of Connecticut (4,842.5 mi²), while Hawaii, the next larger state, has 1.3 times as much land (6,422.6 mi²). Oregon’s county land could hold about 19 areas the size of Douglas County.
Another way to picture it: the same land area would fill a square about 71 miles (114.2 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.
State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.
What stands out about Douglas County?
Douglas County has more land than 3,145 of the other 3,221 county equivalents in the dataset.
A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.
Does including water change its rank?
Using land plus water places Douglas County at #81 nationally by total area, 4 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.
Its water share is 1.9%, compared with a national county-equivalent median of 1.2% — 0.7 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.
Closest positions in the national land ranking
These entries sit immediately beside Douglas County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #76 | Flathead County, Montana | 5,087.3 | Compare |
| #77 | Douglas County, Oregon | 5,035.8 | This county |
| #78 | Rosebud County, Montana | 5,008.1 | Compare |
Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.
Representative coordinates
The Census internal point is 43.286328, -123.154476. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.
Source and precision
U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 13,042,545,653 m²; AWATER: 251,754,386 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Douglas County?
Douglas County, Oregon has 5,035.8 square miles (13,042.5 km²) of land and 97.2 square miles of water, for a total area of 5,133 square miles. It ranks #77 of 3,222 U.S. county equivalents by land area.
Is Douglas County the largest county in Oregon?
No. Douglas County ranks #5 of 36 in Oregon by land area. The largest is Harney County, with 10,134.5 square miles of land.
What counties border Douglas County?
Douglas County shares a land border with Lane County, Coos County, Jackson County, Klamath County, Josephine County, and Curry County.
What is the population of Douglas County?
The Census Bureau estimates Douglas County had 111,951 residents on July 1, 2025, ranking #578 of 3,222 county equivalents. That is 22 people per square mile of land.
What is the county seat of Douglas County?
The county seat of Douglas County is Roseburg.
What cities and towns are in Douglas County?
Douglas County has 12 incorporated places. The most populous five are Roseburg city, Sutherlin city, Winston city, Reedsport city, and Myrtle Creek city; 59,102 residents live outside any incorporated place.
Is Douglas County part of a metropolitan area?
Yes. It is a central county of the Roseburg, OR Micropolitan Statistical Area.
How many ZIP codes are in Douglas County?
30 ZIP Code Tabulation Areas have land in Douglas County, and 26 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Douglas County compare with U.S. states?
It has more land than 3 of the 50 states, including Connecticut (4,842.5 square miles of land).
How many acres of land are in Douglas County?
The land measurement converts to approximately 3,222,883 acres. Including water, total area is approximately 3,285,093 acres. One square mile equals 640 acres.
Why might another source show a different area?
Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.
Can this establish a property boundary?
No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.