Data Last Updated: July 1, 2025

Weld County, CO ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Weld, CO.	49 ZIP Codes (29 General, 7 PO Box, 3 Unique, & 10 Multi County) [More Details]
Area Codes: The Telephone Area Codes that are associated with Weld, CO. Area Codes are used in the North American Numbering Plan (NANP) to facilitate phone routing. There are approximately 350 area codes in use in the United States.	303, 720, 983, 970
Timezone: Time zone designation within the U.S. Please note that not all areas in the U.S. observe daylight saving time which can affect actual local time for this city. There are 7 standard time zones which are, from west to east: Hawaii-Aleutian, Alaska, Pacific, Mountain, Central, Eastern, Atlantic. Also included in U.S. Territories are Samoa, Guam and Palau.	Mountain
Local Time: The current local time for each timezone. If more than 1 time zone for this area, all local times will be shown. Counties can cross timezones, so more than 1 may be shown.	12:00:00 AM
Population: The population of Weld, CO from the U.S. Census 2020. Included are U.S. Citizens, permanent residents, temporary migrants, and undocumented individuals. The total population represents people who live in the city, not just those present while the Census was being completed.	328,981 [More Details]
FIPS: FIPS stands for Federal Information Processing Standards, which are a set of publicly announced standards for computer systems. A county FIPS code is a unique numeric identifier for a county in the United States, assigned by the National Institute of Standards and Technology (NIST). County FIPS codes have five digits, with the first two digits identifying the state and the last 3 indicating the county.	08123
CBSA: A Core Based Statistical Area (CBSA) is the recognized term for a region that functions around an urban core with a population of at least 10,000 people, according to the standards set by the Office of Management and Budget (OMB) in 2000. A CBSA is divided into two subsets: Metro and Micro, and these classifications are determined by population density. A Micro area is identified by a population ranging between 10,000 to 50,000, while a Metro area is defined as having a population that exceeds 50,000.	Greeley, CO
Land Area: The approximate amount of land area covered by Weld, CO in square miles. The Land Area provided by the Census Bureau is based on geographic boundaries that include the mainland, islands, inland, coastal, Great Lakes, and territorial waters associated with each city.	3,985 square miles
Water Area: The approximate amount of water area covered by Weld, CO in square miles. Calculations by the Census Bureau for Water Area take into account inland bodies of water, coastal regions, Great Lakes, and territorial sea waters. This encompasses features such as lakes, reservoirs, rivers, and coastal water bodies.	32 square miles
Coordinates: The latitude/longitude centroid coordinates for Weld County, CO.	-104.392456, 40.554837
Quick Link: Copy the direct link to the Weld, COCounty page and use anywhere you like!	https://www.zip-codes.com/county/co-weld.asp

Weld, CO ZIP Code Boundaries

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Weld County, CO Covers 49 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 69128 *	General	Bushnell	319	--
ZIP Code 69145 *	General	Kimball	2,841	--
ZIP Code 80504	General	Longmont	60,183	18.29%
ZIP Code 80513 *	General	Berthoud	15,824	--
ZIP Code 80514	General	Dacono	6,350	1.93%
ZIP Code 80516 *	General	Erie	34,376	--
ZIP Code 80520	P.O. Box	Firestone	1,933	0.59%
ZIP Code 80524 *	General	Fort Collins	39,030	--
ZIP Code 80530	General	Frederick	5,428	1.65%
ZIP Code 80534	General	Johnstown	18,785	5.71%
ZIP Code 80537 *	General	Loveland	43,603	--
ZIP Code 80542	General	Mead	4,841	1.47%
ZIP Code 80543	General	Milliken	8,696	2.64%
ZIP Code 80546	P.O. Box	Severance	306	0.09%
ZIP Code 80549 *	General	Wellington	13,530	--
ZIP Code 80550	General	Windsor	38,909	11.83%
ZIP Code 80603	General	Brighton	16,078	4.89%
ZIP Code 80610	General	Ault	3,570	1.09%
ZIP Code 80611	General	Briggsdale	868	0.26%
ZIP Code 80612	General	Carr	669	0.20%
ZIP Code 80615	General	Eaton	9,486	2.88%
ZIP Code 80620	General	Evans	20,975	6.38%
ZIP Code 80621	General	Fort Lupton	13,343	4.06%
ZIP Code 80622	General	Galeton	121	0.04%
ZIP Code 80623	P.O. Box	Gilcrest	999	0.30%
ZIP Code 80624	General	Gill	968	0.29%
ZIP Code 80631	General	Greeley	52,336	15.91%
ZIP Code 80632	P.O. Box	Greeley	0	0.00%
ZIP Code 80633	P.O. Box	Greeley	0	0.00%
ZIP Code 80634	General	Greeley	65,980	20.06%
ZIP Code 80638	Unique	Greeley	0	0.00%
ZIP Code 80639	Unique	Greeley	0	0.00%
ZIP Code 80642	General	Hudson	4,139	1.26%
ZIP Code 80643	General	Keenesburg	3,599	1.09%
ZIP Code 80644	General	Kersey	3,006	0.91%
ZIP Code 80645	General	La Salle	4,245	1.29%
ZIP Code 80646	P.O. Box	Lucerne	6	0.00%
ZIP Code 80648	General	Nunn	1,261	0.38%
ZIP Code 80649 *	General	Orchard	397	--
ZIP Code 80650	General	Pierce	1,884	0.57%
ZIP Code 80651	General	Platteville	4,987	1.52%
ZIP Code 80652	General	Roggen	563	0.17%
ZIP Code 80654 *	General	Wiggins	3,230	--
ZIP Code 80729	General	Grover	533	0.16%
ZIP Code 80732	P.O. Box	Hereford	25	0.01%
ZIP Code 80742	General	New Raymer	329	0.10%
ZIP Code 80754	General	Stoneham	157	0.05%
ZIP Code 82082 *	General	Pine Bluffs	1,764	--

* Indicates a Multi County ZIP Code. These ZIP Codes partially cross over into Weld, CO, but will mostly cover area in a different County. Not included in % of Population calculations.

Important Weld, CO Information

Weld County, CO Covers 49 ZIP Codes. This includes 29 General ZIP Codes, 7 PO Box ZIP Codes, and 3 Unique (reserved for Business and Volume Mail Receivers). There are also 10 Multi County ZIP Codes. These records are assigned a different primary county, but they partially cover area in Weld County.

The population for Weld County is 328,981, according to the U.S. Census. Population Density is 82.55 persons per square mile. With 119,962 Housing Units, the Average Household Size is 2.84 persons. There are 113,995 Family Households with an Average Family Size of 2.84 persons. 7.75% of the population is without Health Insurance. The 66.47% Employment Rate is 6.67% above the national average of 59.8%.222,955 people aged 25+ have some educational achievement, with 31.96% (or 71,248 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

There are 4 area codes serving this area including303, 720, 983 and 970. Weld is also located in the Mountain timezone and the current local time is shown above.

Weld is part of the Greeley, CO Core Based Statistical Area (CBSA). Its CBSA Code is 24540.It is classified as a metro area, which means the combined population is 50,000 or more (at its core).

CBSAs are defined by the OMB as geographic areas that have at least one core with a population of 10,000 or more (for a micro area) and adjacent territory with a high degree of social and economic integration. CBSA codes are commonly used to accurately file Medicare claims and to verify applicable incentives using a patient's ZIP Code.

ZIP Codes in Weld, CO have 142,340 Residential mailboxes and 6,274 Business mailboxes.There are 7,537 businesses with a total of 100,665 employees. That is an average of 13.4 employees per business. Annual payroll for these businesses is $6,192,883,000. Other Demographics

Weld County Demographic Profile

Population & People

Total Population

328,981

Income

Median Household Income

$93,287

Housing

Total Housing Units

119,962

Health

Without Healthcare Coverage

7.75%

Business & Economy

Total Businesses

7,537

Families

Total Households

113,995

Employment

Employment Rate

66.47%

Education

Bachelor's Degree or Higher

31.96%

Total Population: Total number of people from the 2020 U.S. Census for Weld, CO. This reflects the exact count of this area at that point in time, not future estimates, regardless of citizenship or immigration status. It is intended to count all persons living within the geographic area, not just those present on the day of the census.	328,981
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Weld, CO. This is derived from known delivery information, household occupancy rates, household size, and more to come up with an accurate estimation for the current population. IMPORTANT: This does not include population totals for persons in nursing homes, correctional facilities, or other institutions. This is an estimation of the household population based on US Postal Service delivery information.	400,115
Total Households: Total number of Households from the 2020 U.S. Census for Weld, CO. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	113,995
Total Housing Units: The total number of Housing Units is the number of occupied units + the number of vacant units. Ownership is defined by whether the unit is occupied by an owner or by a tenant. Owner occupancy means that the owner lives in the unit. This value comes from the 2020 U.S. Census and is not a projection or estimate.	119,962
Average Household Size: The Average Household Size, is obtained by dividing the number of people in Households (excluding those in group quarters, nursing home, prisons, and dorm rooms) by the number of Households. A Household includes everyone living in a residential unit. Those who do not live in a household are classified as living in group accommodation. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	2.84
Average Family Size: Average Family Size is calculated by dividing the number of people in a Family Household by the number of Family Households. The U.S. Census Bureau defines family households as households consisting of two or more individuals who are related by birth, marriage, or adoption. They also may include other unrelated people. Non-family households consist of people who live alone or who share their residence with unrelated individuals. The Average Family Size only looks at the households classified as Family Households. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	2.84

Other Weld Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	142,340
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	6,274
Total Delivery Receptacles: The total number of delivery receptacles. This includes curb side mailboxes, centralized units, PO Boxes, NDCBU, and contract boxes. This count is for Residential and Business combined.	227,598
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	48,780
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	16,253

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	7,537
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$1,473,290,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$6,192,883,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	100,665

Sum of all ZIP Codes assigned Weld, CO as their primary County.

References

U.S. Postal Service [Last Updated: 7/1/2025], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 7/1/2025], https://www.zip-codes.com
U.S. Geological Survey [Updated as needed], https://www.usgs.gov
U.S. Census [Updated Yearly], https://www.census.gov
U.S. Census 2020 [Decennial] [Last Updated: 5/25/2023], https://www.census.gov