Hillsborough County, New Hampshire Demographics 2026

Name: Hillsborough County, New Hampshire Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Hillsborough County, New Hampshire has a population of 426,378, the 1st most populous county in New Hampshire. The median household income is $103,545 and the median home value is $421,100. The poverty rate is 6.7%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Hillsborough County Quick Facts

Population 426,378

Median Household Income $103,545

Median Home Value $421,100

Poverty Rate 6.7%

Unemployment Rate 3.1%

Median Age 41.0 years

Homeownership Rate 67.4%

Affordability Ratio 4.1x

Bachelor's Degree+ 41.5%

High School Graduation 93.4%

Cities/Places 18

Population 426,378 1st of 10

Median Income $103,545 5% higher than state

Poverty Rate 6.7%

Unemployment 3.1%

How Hillsborough County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	424,732	426,378	+0.4%
Median household income	$100,436	$103,545	+3.1%
Median home value	$385,500	$421,100	+9.2%

Median Household Income

Hillsborough

$103,545

$99,031

National

$80,734

Median Home Value

Hillsborough

$421,100

$402,500

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 9.1%

$25K-$50K 12.4%

$50K-$100K 26.8%

$100K+ 51.7%

Detailed income brackets

Under $10K

2.5%

$10K-$15K

2.1%

$15K-$20K

1.9%

$20K-$25K

2.6%

$25K-$30K

2.2%

$30K-$35K

2.2%

$35K-$40K

2.6%

$40K-$45K

2.9%

$45K-$50K

2.5%

$50K-$60K

5.7%

$60K-$75K

8.5%

$75K-$100K

12.6%

$100K-$125K

11.1%

$125K-$150K

8.6%

$150K-$200K

13.6%

$200K+

18.3%

Employment

3.1% Unemployment Rate State: 3.4%|National: 5.2%

70.4% Labor Force Participation

Housing Overview

Owner 67.4%

Renter 32.6%

Affordability Index Moderate

4.1x home value to income ratio

Median gross rent $1,623/mo 18.8% of median household income annually

People & Demographics

Age Distribution

Under 18

19.6%

18-34

22.3%

35-54

25.9%

55-74

25.2%

75+

6.9%

Race & Ethnicity

Diversity Index

Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 24 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Hillsborough County

City	Population	Median Income	Poverty	Home Value
Manchester	115,643	$81,007	11.2%	$365,600
Nashua	91,294	$96,326	7.8%	$403,900
Milford	8,956	$78,684	5.9%	$357,800
Hudson	7,469	$95,842	5.1%	$366,400
East Merrimack	5,081	$87,311	3.4%	$291,500
Pinardville	4,418	$79,340	10.7%	$286,300
Goffstown	3,490	$132,997	3.3%	$415,300
Peterborough	2,539	$85,833	3.2%	$379,300
Hillsborough	1,616	$49,205	10.4%	$265,200
Antrim	1,265	$72,738	12.1%	$281,500
Wilton	1,038	$84,342	2.8%	$359,800
Greenville	865	$53,807	20.5%	$281,700
Amherst	726	$154,286	0.0%	$544,600
Klondike Corner	488	N/A	4.1%	$629,100
Bennington	326	$74,125	8.6%	$243,100
New Boston	245	$250,000+	5.8%	N/A
Francestown	133	$138,438	10.5%	$366,700
Hancock	132	$55,278	0.0%	$381,000

Explore New Hampshire Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Hillsborough County is located in New Hampshire with a total population of 426,378. It is the 1st most populous county out of 10 in New Hampshire. The county encompasses 18 Census-designated places.

Age Demographics

The median age in Hillsborough County is 41.0 years. This is 5% lower than the state median of 43.3 years.

Economy, Income & Housing

The median household income in Hillsborough County is $103,545. This is 5% higher than the state median of $99,031. It is also 28% higher than the national median of $80,734. The poverty rate stands at 6.7%. This is 7% lower than the state poverty rate of 7.2%. The unemployment rate is 3.1%. This is 8% lower than the state rate of 3.4%. The median home value is $421,100. Housing costs are 5% higher than the state median of $402,500. The home-value-to-income ratio is 4.1x. 67.4% of occupied housing units are owner-occupied. This homeownership rate is 7% lower than the state average of 72.8%.

Race & Ethnicity

The largest racial or ethnic group in Hillsborough County is White (non-Hispanic), making up 80.1% of the population. Hispanic or Latino residents account for 8.5%. The Black or African American population is significantly higher than the state average (2.2% vs 1.3%). The Hispanic or Latino population is significantly higher than the state average (8.5% vs 4.7%). The Asian population is significantly higher than the state average (4.3% vs 2.6%).

Education

41.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 2% higher than the state rate of 40.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.4%. Notably, 16.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All figures for Hillsborough County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against New Hampshire and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Hillsborough County, New Hampshire?

Hillsborough County has a population of 426,378, making it the 1st most populous county in New Hampshire.

What is the median income in Hillsborough County?

The median household income in Hillsborough County is $103,545 with a poverty rate of 6.7%.

How many cities are in Hillsborough County, New Hampshire?

Hillsborough County contains 18 Census-designated places.