Canadian County area

Population and density of Canadian County

The Census Bureau estimates that 187,189 people lived in Canadian County on July 1, 2025. That ranks #378 of 3,222 county equivalents nationally and #4 of 77 in Oklahoma. Since the April 1, 2020 estimates base of 154,155, the population has grown by 33,034 (+21.4%), compared with +4.1% for Oklahoma as a whole.

With 896.6 square miles of land, that is 209 people per square mile (81 per km²), placing Canadian County #623 nationally for density and #4 in Oklahoma. The median county equivalent has 47 people per square mile; the Oklahoma median is 28. Put another way, there are about 3.1 acres of land per resident.

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 Canadian County

9 incorporated places lie at least partly in Canadian County. Together they are home to 179,437 people (95.9%); the other 7,752 (4.1%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Oklahoma City city, with 94,011 residents in the county (the city extends into 3 other counties). The county seat, El Reno city, has 20,730 residents. Among places with at least 1,000 residents in 2020, Piedmont city grew fastest since then (+27.5%).

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Canadian County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Canadian County is a central county of the Oklahoma City, OK Metropolitan Statistical Area. Its 7 county equivalents have 1,512,813 residents on 5,511.8 square miles of land; Canadian County accounts for 16.3% of the land and 12.4% of the residents. By combined land it ranks #43 of 393 metropolitan areas, and #43 by population. It belongs to the Oklahoma City-Shawnee, OK Combined Statistical Area.

ZIP codes

14 ZIP Code Tabulation Areas have land in Canadian County; 8 of them have most of their land inside the county, and the others mainly cover neighboring areas.

7301473022730367304073047730597306473078730907309973127731287317973762

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 Canadian County

Canadian County shares a land border with 6 county equivalents. It has more land than 2 of them. The largest neighbor is Caddo County (1,277.8 mi²) and the smallest is Cleveland County (538.9 mi²). Together with its neighbors, Canadian County forms a block of 6,349.2 mi² of land, of which it holds 14.1%.

How big is Canadian County compared with U.S. states?

Canadian County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.2 times as much. Oklahoma’s county land could hold about 77 areas the size of Canadian County.

Another way to picture it: the same land area would fill a square about 29.9 miles (48.2 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 Canadian County?

Canadian County has more land than 2,351 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 Canadian County at #948 nationally by total area, 77 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%, compared with a national county-equivalent median of 1.2% — 0.2 percentage points lower. 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 Canadian County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

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.