Data Last Updated: July 1, 2025

Carroll County, NH ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Carroll, NH.	31 ZIP Codes (27 General, 4 PO Box, 0 Unique, & 0 Multi County) [More Details]
Area Code: The Telephone Area Code that are associated with Carroll, 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 Carroll, 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.	50,107 [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.	33003
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.	None
Land Area: The approximate amount of land area covered by Carroll, 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.	932 square miles
Water Area: The approximate amount of water area covered by Carroll, 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.	62 square miles
Coordinates: The latitude/longitude centroid coordinates for Carroll County, NH.	-71.203095, 43.873812
Quick Link: Copy the direct link to the Carroll, NHCounty page and use anywhere you like!	https://www.zip-codes.com/county/nh-carroll.asp

Carroll, NH ZIP Code Boundaries

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Carroll County, NH Covers 31 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 03227	General	Center Sandwich	1,113	2.22%
ZIP Code 03254	General	Moultonborough	4,910	9.80%
ZIP Code 03259	General	North Sandwich	236	0.47%
ZIP Code 03812	General	Bartlett	936	1.87%
ZIP Code 03813	General	Center Conway	3,681	7.35%
ZIP Code 03814	General	Center Ossipee	2,357	4.70%
ZIP Code 03816	General	Center Tuftonboro	1,304	2.60%
ZIP Code 03817	General	Chocorua	452	0.90%
ZIP Code 03818	General	Conway	3,478	6.94%
ZIP Code 03830	General	East Wakefield	1,611	3.22%
ZIP Code 03832	P.O. Box	Eaton Center	405	0.81%
ZIP Code 03836	General	Freedom	1,689	3.37%
ZIP Code 03838	General	Glen	1,150	2.30%
ZIP Code 03845	General	Intervale	1,093	2.18%
ZIP Code 03846	General	Jackson	995	1.99%
ZIP Code 03847	P.O. Box	Kearsarge	326	0.65%
ZIP Code 03849	General	Madison	1,446	2.89%
ZIP Code 03850	P.O. Box	Melvin Village	340	0.68%
ZIP Code 03853	General	Mirror Lake	769	1.53%
ZIP Code 03860	General	North Conway	3,910	7.80%
ZIP Code 03864	General	Ossipee	1,999	3.99%
ZIP Code 03872	General	Sanbornville	3,981	7.94%
ZIP Code 03875	General	Silver Lake	973	1.94%
ZIP Code 03882	General	Effingham	1,682	3.36%
ZIP Code 03883	General	South Tamworth	300	0.60%
ZIP Code 03886	General	Tamworth	1,977	3.95%
ZIP Code 03887	General	Union	2,151	4.29%
ZIP Code 03890	General	West Ossipee	177	0.35%
ZIP Code 03894	General	Wolfeboro	6,382	12.74%
ZIP Code 03896	P.O. Box	Wolfeboro Falls	0	0.00%
ZIP Code 03897	General	Wonalancet	55	0.11%

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

Important Carroll, NH Information

Carroll County, NH Covers 31 ZIP Codes. This includes 27 General ZIP Codes, 4 PO Box ZIP Codes, and 0 Unique (reserved for Business and Volume Mail Receivers).

The population for Carroll County is 50,107, according to the U.S. Census. Population Density is 53.76 persons per square mile. With 39,670 Housing Units, the Average Household Size is 2.19 persons. There are 22,667 Family Households with an Average Family Size of 2.91 persons. 5.61% of the population is without Health Insurance. The 55.60% Employment Rate is 4.20% above the national average of 59.8%.40,696 people aged 25+ have some educational achievement, with 38.79% (or 15,788 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

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

ZIP Codes in Carroll, NH have 18,486 Residential mailboxes and 809 Business mailboxes.There are 1,929 businesses with a total of 17,238 employees. That is an average of 8.9 employees per business. Annual payroll for these businesses is $803,378,000. Other Demographics

Carroll County Demographic Profile

Population & People

Total Population

50,107

Income

Median Household Income

$82,961

Housing

Total Housing Units

39,670

Health

Without Healthcare Coverage

5.61%

Business & Economy

Total Businesses

1,929

Families

Total Households

22,667

Employment

Employment Rate

55.60%

Education

Bachelor's Degree or Higher

38.79%

Total Population: Total number of people from the 2020 U.S. Census for Carroll, 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.	50,107
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Carroll, 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.	41,173
Total Households: Total number of Households from the 2020 U.S. Census for Carroll, NH. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	22,667
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.	39,670
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.	2.19
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.	2.91

Other Carroll Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	18,486
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	809
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.	37,822
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	15,439
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	1,211

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	1,929
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$172,493,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$803,378,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	17,238

Sum of all ZIP Codes assigned Carroll, 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