Data Last Updated: July 1, 2025

Hunterdon County, NJ ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Hunterdon, NJ.	33 ZIP Codes (19 General, 9 PO Box, 0 Unique, & 5 Multi County) [More Details]
Area Codes: The Telephone Area Codes that are associated with Hunterdon, NJ. 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.	609, 640, 908
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.	Eastern
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 Hunterdon, NJ 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.	128,947 [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.	34019
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.	New York-Newark-Jersey City, NY-NJ
Land Area: The approximate amount of land area covered by Hunterdon, NJ 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.	428 square miles
Water Area: The approximate amount of water area covered by Hunterdon, NJ 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.	10 square miles
Coordinates: The latitude/longitude centroid coordinates for Hunterdon County, NJ.	-74.912229, 40.567304
Quick Link: Copy the direct link to the Hunterdon, NJCounty page and use anywhere you like!	https://www.zip-codes.com/county/nj-hunterdon.asp

Hunterdon, NJ ZIP Code Boundaries

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Hunterdon County, NJ Covers 33 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 07830	General	Califon	6,529	5.06%
ZIP Code 07979	P.O. Box	Pottersville	362	0.28%
ZIP Code 08525 *	General	Hopewell	4,649	--
ZIP Code 08530	General	Lambertville	7,832	6.07%
ZIP Code 08551	General	Ringoes	5,540	4.30%
ZIP Code 08556	General	Rosemont	0	0.00%
ZIP Code 08557	P.O. Box	Sergeantsville	0	0.00%
ZIP Code 08559	General	Stockton	5,009	3.88%
ZIP Code 08560 *	General	Titusville	3,553	--
ZIP Code 08801	General	Annandale	8,345	6.47%
ZIP Code 08802	General	Asbury	3,911	3.03%
ZIP Code 08803	P.O. Box	Baptistown	0	0.00%
ZIP Code 08804	General	Bloomsbury	2,987	2.32%
ZIP Code 08809	General	Clinton	7,255	5.63%
ZIP Code 08822	General	Flemington	31,844	24.70%
ZIP Code 08825	General	Frenchtown	4,494	3.49%
ZIP Code 08826	General	Glen Gardner	5,426	4.21%
ZIP Code 08827	General	Hampton	4,531	3.51%
ZIP Code 08829	General	High Bridge	3,566	2.77%
ZIP Code 08833	General	Lebanon	9,117	7.07%
ZIP Code 08834	P.O. Box	Little York	0	0.00%
ZIP Code 08848	General	Milford	8,103	6.28%
ZIP Code 08853 *	General	Neshanic Station	5,445	--
ZIP Code 08858	P.O. Box	Oldwick	117	0.09%
ZIP Code 08865 *	General	Phillipsburg	30,537	--
ZIP Code 08867	General	Pittstown	5,221	4.05%
ZIP Code 08868	P.O. Box	Quakertown	0	0.00%
ZIP Code 08870	P.O. Box	Readington	0	0.00%
ZIP Code 08876 *	General	Somerville	22,849	--
ZIP Code 08885	P.O. Box	Stanton	0	0.00%
ZIP Code 08887	General	Three Bridges	1,047	0.81%
ZIP Code 08888	P.O. Box	Whitehouse	0	0.00%
ZIP Code 08889	General	Whitehouse Station	9,928	7.70%

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

Important Hunterdon, NJ Information

Hunterdon County, NJ Covers 33 ZIP Codes. This includes 19 General ZIP Codes, 9 PO Box ZIP Codes, and 0 Unique (reserved for Business and Volume Mail Receivers). There are also 5 Multi County ZIP Codes. These records are assigned a different primary county, but they partially cover area in Hunterdon County.

The population for Hunterdon County is 128,947, according to the U.S. Census. Population Density is 301.28 persons per square mile. With 51,687 Housing Units, the Average Household Size is 2.56 persons. There are 48,978 Family Households with an Average Family Size of 2.77 persons. 2.53% of the population is without Health Insurance. The 62.25% Employment Rate is 2.45% above the national average of 59.8%.94,312 people aged 25+ have some educational achievement, with 56.50% (or 53,286 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

There are 3 area codes serving this area including609, 640 and 908. Hunterdon is also located in the Eastern timezone and the current local time is shown above.

Hunterdon is part of the New York-Newark-Jersey City, NY-NJ Core Based Statistical Area (CBSA). Its CBSA Code is 35620.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 Hunterdon, NJ have 51,888 Residential mailboxes and 3,420 Business mailboxes.There are 3,699 businesses with a total of 43,748 employees. That is an average of 11.8 employees per business. Annual payroll for these businesses is $2,812,350,000. Other Demographics

Hunterdon County Demographic Profile

Population & People

Total Population

128,947

Income

Median Household Income

$139,453

Housing

Total Housing Units

51,687

Health

Without Healthcare Coverage

2.53%

Business & Economy

Total Businesses

3,699

Families

Total Households

48,978

Employment

Employment Rate

62.25%

Education

Bachelor's Degree or Higher

56.50%

Total Population: Total number of people from the 2020 U.S. Census for Hunterdon, NJ. 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.	128,947
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Hunterdon, NJ. 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.	133,165
Total Households: Total number of Households from the 2020 U.S. Census for Hunterdon, NJ. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	48,978
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.	51,687
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.	2.56
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.	2.77

Other Hunterdon Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	51,888
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	3,420
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.	75,162
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	42,785
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	786

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	3,699
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$732,716,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$2,812,350,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	43,748

Sum of all ZIP Codes assigned Hunterdon, NJ 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