ZIP Codes of Denver County, CO

695,356 residents live across 48 ZIPs covering 166 sq mi, served by 1 distinct USPS-recognized cities.

Population moved from 610,134 to 695,356 from 2014 to 2024 — a +14.0% change. 23 ZIPs gained residents, 3 lost (and 3 held flat).

The county's wealthiest ZIP 80238 (Denver, $180,940 median) and poorest ZIP 80246 (Denver, $67,235) are 5.9 miles apart — a 2.7× income gap across local geography.

Median home values vary 2.4× across this county — from $425,700 in 80216 (Denver) to $1,018,300 in 80209 (Denver).

Density varies 28× across the county — from 703 people/sq mi in 80249 (Denver) to 20,001 in 80203 (Denver).

Most of the decade's growth concentrated around Denver — top growth ZIPs averaged +90.6% over the past ten years ( 80238 , 80202 and 80216 ).

Educational attainment ranges from 18.9% bachelor's+ in 80239 (Denver) to 80.5% in 80209 (Denver) — the breadth of educational profiles across the area.

Within Colorado, this is the #2 most populous of 65 counties and ranks #14 for median household income with the #12 fastest decade growth .

On the national stage, Denver County is the #99 most populous US county .

Hosts 4 single-entity Unique ZIPs: 80257Us Court Of Appeals 10Th Cir ; 80291Wells Fargo Bank ; 80281Wells Fargo Bank ; and 80256Us Bank .

Weighted by population, the typical household earns about $100,196 across the county — reflecting what a typical resident sees, not a simple ZIP average.

57.4% of adults age 25+ hold a bachelor's degree or higher (294,991 of 513,959 reporting). The most-educated ZIPs cluster around Denver.

32 Standard delivery, 4 PO Box only, 12 single-entity Unique ZIPs serve this county.