ZIP Codes of Canadian County, OK

156,616 residents live across 8 ZIPs covering 639 sq mi, served by 7 distinct USPS-recognized cities.

Population moved from 113,926 to 156,616 from 2014 to 2024 — a +37.5% change. 4 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 73078 (Piedmont, $105,441 median) and poorest ZIP 73036 (El Reno, $59,915) are 15.3 miles apart — a 1.8× income gap across local geography.

Median home values vary 1.8× across this county — from $172,500 in 73036 (El Reno) to $318,400 in 73078 (Piedmont).

Density varies 79× across the county — from 10 people/sq mi in 73014 (Calumet) to 755 in 73099 (Yukon).

Educational attainment ranges from 17.9% bachelor's+ in 73036 (El Reno) to 37.6% in 73078 (Piedmont) — the breadth of educational profiles across the area.

Within Oklahoma, this is the #4 most populous of 78 counties and ranks #1 for median household income with the #1 fastest decade growth .

On the national stage, Canadian County is and #33 for decade growth .

Weighted by population, the typical household earns about $86,814 across the county — reflecting what a typical resident sees, not a simple ZIP average.

31.9% of adults age 25+ hold a bachelor's degree or higher (33,341 of 104,586 reporting).

6 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.