Seabrook Beach, NH Profile: Facts & Data

The Seabrook Beach Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

Seabrook Beach, NH Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	1,069 (100%)
Population in Households	1,069 (100.0%)
Population in Families	800 (74.8%)
Population in Group Quarters¹	0
Population Density	1,021
Diversity Index²	17


INCOME
Median Household Income	$120,352
Average Household Income	$173,647
% of Income for Mortgage⁴	46%
Per Capita Income	$91,778
Wealth Index⁵	220
Socioeconomic Status Index⁶	Moderate (64.9)

HOUSING
Total HU (Housing Units)	1,049 (100%)
Owner Occupied HU	432 (41.2%)
Renter Occupied HU	133 (12.7%)
Vacant Housing Units	484 (46.1%)
Median Home Value	$887,500
Average Home Value	$978,328
Housing Affordability Index³	47

HOUSEHOLDS
Total Households	565
Average Household Size	1.89
Family Households	326
Average Family Size	2.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Seabrook Beach, NH - Peer Comparisons by Rank and Percentile

The table below compares Seabrook Beach to the other 100 incorporated cities, towns and CDPs in New Hampshire by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	-0.16%	0.39%
Households	0.27%	0.63%
Families		0.00%
Median Household Income		6.33%
Per Capita Income		2.15%
Owner Occupied HU		0.73%

Variable Description	Rank	Percentile
Total Population	# 62	39th
Population Density	# 28	73rd
Median Household Income	# 13	88th
Housing Affordability Index	# 5	5th
Per Capita Income	# 2	99th
Diversity Index	# 76	26th

Seabrook Beach, NH Profile: Facts & Data

Seabrook Beach, New Hampshire - Basic Facts

Seabrook Beach, NH Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Seabrook Beach, NH - Peer Comparisons by Rank and Percentile

Seabrook Beach, NH - Most Popular Things to Do

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