Data Last Updated: January 1, 2025

Hillsborough County, NH ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Hillsborough, NH.	39 ZIP Codes (34 General, 4 PO Box, 1 Unique, & 0 Multi County) [More Details]
Area Code: The Telephone Area Code that are associated with Hillsborough, NH. 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.	603
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 Hillsborough, NH 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.	422,937 [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.	33011
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.	Manchester-Nashua, NH
Land Area: The approximate amount of land area covered by Hillsborough, NH 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.	877 square miles
Water Area: The approximate amount of water area covered by Hillsborough, NH 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.	16 square miles
Coordinates: The latitude/longitude centroid coordinates for Hillsborough County, NH.	-71.716085, 42.915333
Quick Link: Copy the direct link to the Hillsborough, NHCounty page and use anywhere you like!	https://www.zip-codes.com/county/nh-hillsborough.asp

Hillsborough, NH ZIP Code Boundaries

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Hillsborough County, NH Covers 39 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 03031	General	Amherst	11,763	2.78%
ZIP Code 03033	General	Brookline	5,639	1.33%
ZIP Code 03043	General	Francestown	1,610	0.38%
ZIP Code 03045	General	Goffstown	14,107	3.34%
ZIP Code 03047	General	Greenfield	1,727	0.41%
ZIP Code 03048	General	Greenville	3,353	0.79%
ZIP Code 03049	General	Hollis	8,342	1.97%
ZIP Code 03051	General	Hudson	25,394	6.00%
ZIP Code 03052	General	Litchfield	8,478	2.00%
ZIP Code 03054	General	Merrimack	26,622	6.29%
ZIP Code 03055	General	Milford	16,120	3.81%
ZIP Code 03057	General	Mont Vernon	2,612	0.62%
ZIP Code 03060	General	Nashua	31,251	7.39%
ZIP Code 03061	P.O. Box	Nashua	0	0.00%
ZIP Code 03062	General	Nashua	28,966	6.85%
ZIP Code 03063	General	Nashua	16,036	3.79%
ZIP Code 03064	General	Nashua	15,069	3.56%
ZIP Code 03070	General	New Boston	6,134	1.45%
ZIP Code 03071	General	New Ipswich	5,198	1.23%
ZIP Code 03076	General	Pelham	14,222	3.36%
ZIP Code 03082	General	Lyndeborough	1,621	0.38%
ZIP Code 03084	General	Temple	1,382	0.33%
ZIP Code 03086	General	Wilton	3,982	0.94%
ZIP Code 03101	General	Manchester	3,885	0.92%
ZIP Code 03102	General	Manchester	33,396	7.90%
ZIP Code 03103	General	Manchester	38,039	8.99%
ZIP Code 03104	General	Manchester	34,324	8.12%
ZIP Code 03105	P.O. Box	Manchester	0	0.00%
ZIP Code 03108	P.O. Box	Manchester	0	0.00%
ZIP Code 03109	General	Manchester	10,580	2.50%
ZIP Code 03110	General	Bedford	23,322	5.51%
ZIP Code 03111	Unique	Manchester	0	0.00%
ZIP Code 03244	General	Hillsborough	8,001	1.89%
ZIP Code 03281	General	Weare	9,092	2.15%
ZIP Code 03440	General	Antrim	2,726	0.64%
ZIP Code 03442	General	Bennington	1,501	0.35%
ZIP Code 03449	General	Hancock	1,763	0.42%
ZIP Code 03458	General	Peterborough	6,794	1.61%
ZIP Code 03468	P.O. Box	West Peterborough	0	0.00%

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

Important Hillsborough, NH Information

Hillsborough County, NH Covers 39 ZIP Codes. This includes 34 General ZIP Codes, 4 PO Box ZIP Codes, and 1 Unique (reserved for Business and Volume Mail Receivers).

The population for Hillsborough County is 422,937, according to the U.S. Census. Population Density is 482.25 persons per square mile. With 175,571 Housing Units, the Average Household Size is 2.47 persons. There are 167,875 Family Households with an Average Family Size of 2.98 persons. 5.51% of the population is without Health Insurance. The 67.69% Employment Rate is 7.89% above the national average of 59.8%.299,095 people aged 25+ have some educational achievement, with 39.64% (or 118,559 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

603 is the only area code for this area. Hillsborough is also located in the Eastern timezone and the current local time is shown above.

Hillsborough is part of the Manchester-Nashua, NH Core Based Statistical Area (CBSA). Its CBSA Code is 31700.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 Hillsborough, NH have 173,103 Residential mailboxes and 11,580 Business mailboxes.There are 11,076 businesses with a total of 184,768 employees. That is an average of 16.7 employees per business. Annual payroll for these businesses is $13,012,486,000. Other Demographics

Hillsborough County Demographic Profile

Population & People

Total Population

422,937

Income

Median Household Income

$86,930

Housing

Total Housing Units

175,571

Health

Without Healthcare Coverage

5.51%

Business & Economy

Total Businesses

11,076

Families

Total Households

167,875

Employment

Employment Rate

67.69%

Education

Bachelor's Degree or Higher

39.64%

Total Population: Total number of people from the 2020 U.S. Census for Hillsborough, NH. 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.	422,937
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Hillsborough, NH. 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.	427,157
Total Households: Total number of Households from the 2020 U.S. Census for Hillsborough, NH. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	167,875
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.	175,571
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.	2.47
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.	2.98

Other Hillsborough Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	173,103
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	11,580
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.	211,851
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	125,268
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	29,978

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	11,076
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$3,122,028,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$13,012,486,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	184,768

Sum of all ZIP Codes assigned Hillsborough, NH as their primary County.

References

U.S. Postal Service [Last Updated: 1/1/2025], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 1/1/2025], 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