Data Last Updated: July 1, 2025

Rockingham County, NH ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Rockingham, NH.	46 ZIP Codes (34 General, 9 PO Box, 1 Unique, & 2 Multi County) [More Details]
Area Code: The Telephone Area Code that are associated with Rockingham, 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 Rockingham, 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.	314,176 [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.	33015
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.	Boston-Cambridge-Newton, MA-NH
Land Area: The approximate amount of land area covered by Rockingham, 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.	695 square miles
Water Area: The approximate amount of water area covered by Rockingham, 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.	100 square miles
Coordinates: The latitude/longitude centroid coordinates for Rockingham County, NH.	-71.125360, 42.987549
Quick Link: Copy the direct link to the Rockingham, NHCounty page and use anywhere you like!	https://www.zip-codes.com/county/nh-rockingham.asp

Rockingham, NH ZIP Code Boundaries

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Rockingham County, NH Covers 46 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 03032	General	Auburn	5,930	1.89%
ZIP Code 03034	General	Candia	4,066	1.29%
ZIP Code 03036	General	Chester	5,251	1.67%
ZIP Code 03037	General	Deerfield	4,802	1.53%
ZIP Code 03038	General	Derry	34,482	10.98%
ZIP Code 03040	P.O. Box	East Candia	0	0.00%
ZIP Code 03041	P.O. Box	East Derry	0	0.00%
ZIP Code 03042	General	Epping	7,146	2.27%
ZIP Code 03044	General	Fremont	4,739	1.51%
ZIP Code 03053	General	Londonderry	25,646	8.16%
ZIP Code 03073	P.O. Box	North Salem	0	0.00%
ZIP Code 03077	General	Raymond	10,684	3.40%
ZIP Code 03079	General	Salem	30,095	9.58%
ZIP Code 03087	General	Windham	15,817	5.03%
ZIP Code 03103 *	General	Manchester	38,039	--
ZIP Code 03104 *	General	Manchester	34,324	--
ZIP Code 03261	General	Northwood	4,685	1.49%
ZIP Code 03290	General	Nottingham	5,129	1.63%
ZIP Code 03291	General	West Nottingham	73	0.02%
ZIP Code 03801	General	Portsmouth	22,767	7.25%
ZIP Code 03802	P.O. Box	Portsmouth	0	0.00%
ZIP Code 03803	Unique	Portsmouth	0	0.00%
ZIP Code 03804	P.O. Box	Portsmouth	0	0.00%
ZIP Code 03811	General	Atkinson	7,081	2.25%
ZIP Code 03819	General	Danville	4,208	1.34%
ZIP Code 03826	General	East Hampstead	2,693	0.86%
ZIP Code 03827	General	East Kingston	3,307	1.05%
ZIP Code 03833	General	Exeter	22,662	7.21%
ZIP Code 03840	General	Greenland	4,076	1.30%
ZIP Code 03841	General	Hampstead	6,486	2.06%
ZIP Code 03842	General	Hampton	16,048	5.11%
ZIP Code 03843	P.O. Box	Hampton	0	0.00%
ZIP Code 03844	General	Hampton Falls	2,428	0.77%
ZIP Code 03848	General	Kingston	6,202	1.97%
ZIP Code 03854	P.O. Box	New Castle	1,000	0.32%
ZIP Code 03856	General	Newfields	1,769	0.56%
ZIP Code 03857	General	Newmarket	9,430	3.00%
ZIP Code 03858	General	Newton	4,820	1.53%
ZIP Code 03859	P.O. Box	Newton Junction	0	0.00%
ZIP Code 03862	General	North Hampton	4,597	1.46%
ZIP Code 03865	General	Plaistow	7,830	2.49%
ZIP Code 03870	General	Rye	5,234	1.67%
ZIP Code 03871	P.O. Box	Rye Beach	250	0.08%
ZIP Code 03873	General	Sandown	6,557	2.09%
ZIP Code 03874	General	Seabrook	8,542	2.72%
ZIP Code 03885	General	Stratham	7,660	2.44%

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

Important Rockingham, NH Information

Rockingham County, NH Covers 46 ZIP Codes. This includes 34 General ZIP Codes, 9 PO Box ZIP Codes, and 1 Unique (reserved for Business and Volume Mail Receivers). There are also 2 Multi County ZIP Codes. These records are assigned a different primary county, but they partially cover area in Rockingham County.

The population for Rockingham County is 314,176, according to the U.S. Census. Population Density is 452.05 persons per square mile. With 135,338 Housing Units, the Average Household Size is 2.48 persons. There are 125,787 Family Households with an Average Family Size of 2.86 persons. 3.82% of the population is without Health Insurance. The 65.90% Employment Rate is 6.10% above the national average of 59.8%.235,035 people aged 25+ have some educational achievement, with 44.78% (or 105,250 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

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

Rockingham is part of the Boston-Cambridge-Newton, MA-NH Core Based Statistical Area (CBSA). Its CBSA Code is 14460.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 Rockingham, NH have 132,299 Residential mailboxes and 10,113 Business mailboxes.There are 10,185 businesses with a total of 145,615 employees. That is an average of 14.3 employees per business. Annual payroll for these businesses is $9,454,618,000. Other Demographics

Rockingham County Demographic Profile

Population & People

Total Population

314,176

Income

Median Household Income

$113,927

Housing

Total Housing Units

135,338

Health

Without Healthcare Coverage

3.82%

Business & Economy

Total Businesses

10,185

Families

Total Households

125,787

Employment

Employment Rate

65.90%

Education

Bachelor's Degree or Higher

44.78%

Total Population: Total number of people from the 2020 U.S. Census for Rockingham, 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.	314,176
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Rockingham, 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.	327,112
Total Households: Total number of Households from the 2020 U.S. Census for Rockingham, NH. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	125,787
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.	135,338
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.	2.48
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.	2.86

Other Rockingham Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	132,299
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	10,113
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.	163,126
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	98,392
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	19,755

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	10,185
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$2,288,624,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$9,454,618,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	145,615

Sum of all ZIP Codes assigned Rockingham, NH 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