Weld

Source:

Colorado

Weld is a county in Colorado with 32 ZIP codes and a total population of 250,512. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.

Weld is a county inside Colorado (FIPS code 08123) that contains 32 USPS ZIP codes covering a combined population of 250,512 according to Census ACS 5-Year Estimates. Counties are the natural bridge between state-level summaries and ZIP-level detail — crime statistics, HUD Fair Market Rents, and childcare pricing are all published at the county level, while household income and housing values are published at the ZIP level. This page reconciles the two views so you can see which ZIPs drive the county totals.

The 32 ZIPs listed below are ordered by population and each links to the full ZIP detail page with Census demographics, housing, income, home-price history, and cross-agency inputs. The most populated ZIP in Weld is 80634 covering Greeley with 52,861 residents at 548 people per square mile. Population density across ZIPs in this county varies — use the density column to spot urban cores versus rural delivery areas. A single county can contain both a dense downtown ZIP and a large rural ZIP covering several hundred square miles.

Because Weld uses FIPS code 08123, it joins cleanly to county-level federal datasets: HUD Fair Market Rent tables, FBI Uniform Crime Report data, and the Department of Labor National Database of Childcare Prices all key off the same code. That is how neighborhood scorecards combine ZIP-level Census demographics with county-level safety and affordability metrics. All data on this page comes from U.S. Census Bureau ACS 2023 5-Year Estimates and USPS ZIP Code Tabulation Area files — no estimates, no proprietary sources, no editorial scoring.

32

Total ZIPs

250,512

Total Population

ZIP Codes in Weld

Side-by-side: Compare 80634 vs 80631 →

ZIP Code City Population Density
80634 Greeley 52,861 548
80631 Greeley 48,603 183
80550 Windsor 20,675 150
80516 Erie 20,254 196
80620 Evans 17,775 1,040
80621 Fort Lupton 12,079 37
80603 Brighton 11,973 58
80534 Johnstown 11,301 90
80615 Eaton 7,482 27
80543 Milliken 5,887 72
80642 Hudson 4,309 18
80651 Platteville 4,176 17
80514 Dacono 4,106 235
80645 La Salle 3,905 11
80530 Frederick 3,790 771
80542 Mead 3,631 156
80643 Keenesburg 3,011 6
80644 Kersey 2,989 7
80610 Ault 2,791 6
80520 Firestone 1,498 1,435
80650 Pierce 1,432 11
80623 Gilcrest 1,028 597
80648 Nunn 1,001 3
80624 Gill 946 12
80611 Briggsdale 659 1
80652 Roggen 574 1
80729 Grover 540 0
80612 Carr 430 1
80622 Galeton 268 8
80742 New Raymer 225 0
80754 Stoneham 164 0
80546 Severance 149 752

What are common questions about ZIP codes in this county?

What is the population of Weld?
Weld has a total population of 250,512 across 32 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Weld?
Weld includes 32 ZIP codes: 80634, 80631, 80550, 80516, 80620, 80621, 80603, 80534, 80615, 80543, and more.
What is the median household income in Weld?
Median household income data for individual ZIP codes in Weld is available on each ZIP code's detail page. Visit any ZIP code link below to see income, housing, and demographic data.

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023). Verify with Census Bureau →

Source: HUD USPS Crosswalk (ZIP-to-county mapping). Verify with HUD →

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.