2025

Counties in New Hampshire ranked by White Population

This list ranks the 10 counties in New Hampshire based on their White population, as estimated by the United States Census Bureau. It also highlights population changes in these counties over the past five years.
Updated Feb 10, 2025

Top 5 counties with the largest White population in New Hampshire

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  • 1
    Hillsborough County
    White population in Hillsborough County is 383,962
    83.52% of Hillsborough County population is White
  • 2
    Rockingham County
    White population in Rockingham County is 303,538
    91.47% of Rockingham County population is White
  • 3
    Merrimack County
    White population in Merrimack County is 148,412
    91.23% of Merrimack County population is White
  • 4
    Strafford County
    White population in Strafford County is 125,266
    88.96% of Strafford County population is White
  • 5
    Grafton County
    White population in Grafton County is 85,971
    89.19% of Grafton County population is White

List of 10 counties in New Hampshire by White Population

View Methodology
Rank by White Population
County
White Population
% of Total County Population
% of Total New Hampshire White Population
5 Year Rank Trend
1 Hillsborough County 383,962 83.52% 29.37%
2 Rockingham County 303,538 91.47% 23.22%
3 Merrimack County 148,412 91.23% 11.35%
4 Strafford County 125,266 88.96% 9.58%
5 Grafton County 85,971 89.19% 6.58%
6 Cheshire County 75,136 92.20% 5.75%
7 Belknap County 62,136 93.64% 4.75%
8 50,084 94.82% 3.83%
9 42,162 92.33% 3.23%
10 30,576 94.22% 2.34%

Methodology

This ranking list is based on data from the American Community Survey (ACS) 5-Year Estimates, conducted by the U.S. Census Bureau. The ACS is one of the most reliable sources for understanding population trends across different locations, and it provides estimates for various racial and ethnic groups at city, county, state and all geography levels down to the Census block group.
This list ranks counties in New Hampshire by their White population, using the most recent ACS data available.

How the Census Defines White Population

The U.S. Census Bureau allows people to self-identify their race, meaning individuals can choose one or more racial categories when responding to the survey. In this ranking, we include everyone who identifies as White, whether alone or in combination with another race.
Here are a few important things to know about how race is reported:
  • Some people identify as White alone, while others identify as White along with another race (such as White and White).
  • Hispanic / Latino origin is reported separately from race, so someone can be both Hispanic and White .
  • We’ve used the “White alone or in combination” category unless noted otherwise, which gives a broader picture of the White population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as White alone or in combination in counties. To provide additional context, we’ve also included two key percentages:
  1. % of Total County Population – This shows what percentage of the total state population identifies as White .
  2. % of Total New Hampshire White Population – This tells us how much of the entire U.S. White population lives in that state.
To keep things simple, all population numbers have been rounded to the nearest whole number, and percentages are rounded to one decimal place. Because of rounding, some percentages may not add up to exactly 100%.

Things to Keep in Mind

Like all survey-based data, ACS estimates come with some limitations. Here are a few things to be aware of:
  • In places with very small White populations, the numbers may not be reported at all due to privacy protections or sampling variability in the survey.
  • Since the ACS is based on a sample, the numbers are estimates, not exact counts. That means they may slightly differ from other sources like the decennial U.S. Census.
  • Counties that don’t have any reported White population are not included in the ranking but are listed separately below for reference.
This ranking is meant to provide a clear, data-driven look at where White populations are most concentrated while keeping the numbers easy to understand.

Sources

U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.