| ZIP Codes: | 3 ZIP Codes (1 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 720 / 983 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:11:32 PM |
| Population: | 5,194 [See All] |
| FIPS: | 08047 |
| CBSA: | Denver-Aurora-Centennial, CO |
| Land Area: | 111 sq mi |
| Water Area: | 0 sq mi |
| Coordinates: | 39.8474, -105.5479 |
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5,194 residents live across 3 ZIPs covering 111 sq mi, served by 3 distinct USPS-recognized cities.
Population moved from 5,183 to 4,930 from 2014 to 2024 — a -4.9% change. 0 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 80422 (Black Hawk, $95,625 median) and poorest ZIP 80427 (Central City, $62,264) are 5.2 miles apart — a 1.5× income gap across local geography.
Median home values vary 1.6× across this county — from $364,300 in 80427 (Central City) to $588,800 in 80422 (Black Hawk).
Density varies 8× across the county — from 9 people/sq mi in 80474 (Rollinsville) to 65 in 80422 (Black Hawk).
Educational attainment ranges from 24.3% bachelor's+ in 80427 (Central City) to 71.2% in 80474 (Rollinsville) — the breadth of educational profiles across the area.
Within Colorado, this is the #51 most populous of 65 counties and ranks #31 for median household income .
Weighted by population, the typical household earns about $91,788 across the county — reflecting what a typical resident sees, not a simple ZIP average.
51.3% of adults age 25+ hold a bachelor's degree or higher (2,182 of 4,250 reporting).
1 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.