Hillsborough County, New Hampshire Population 2021

Hillsborough County, New Hampshire's estimated population is 421,815 with a growth rate of 0.57% in the past year according to the most recent United States census data. Hillsborough County, New Hampshire is the 2nd largest county in New Hampshire. The 2010 Population was 401,055 and has seen a growth of 5.18% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
2021421,8152,3950.57%
2020419,4202,3950.57%
2019417,0252,3950.58%
2018414,6301,4260.35%
2017413,2041,8710.45%
2016411,3332,3480.57%
2015408,9851,7100.42%
2014407,2751,9940.49%
2013405,2819370.23%
2012404,3441,5700.39%
2011402,7741,7190.43%
2010401,05564,98219.34%
1990336,07359,46521.50%
1980276,60852,66723.52%
1970223,94145,78025.70%
1960178,16121,17413.49%
1950156,98712,0998.35%
1940144,8884,7233.37%
1930140,1654,6533.43%
1920135,5129,4407.49%
1910126,07213,43211.92%
1900112,64019,39320.80%
189093,24717,61323.29%
188075,63411,39617.74%
187064,2382,0983.38%
186062,1404,6628.11%
185057,47814,98435.26%
184042,4944,77012.64%
183037,724-16,160-29.99%
182053,8844,6359.41%
181049,2495,35012.19%
180043,89911,02833.55%
179032,8710.00%
2021 Growth Rate
0.57%
County Website
Founded
1769
County Seat
2010 Population
401,055
Growth Since 2010
5.18%
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Hillsborough County, New Hampshire Population Growth

Population by Race

Race Population Percentage
White369,39489.43%
Asian16,6944.04%
Black or African American12,0252.91%
Two or More Races10,3922.52%
Some Other Race3,8350.93%
American Indian and Alaska Native4770.12%
Native Hawaiian and Other Pacific Islander2180.05%
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Hillsborough County, New Hampshire Population by Race

Hillsborough County, New Hampshire Population Pyramid $2021

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Hillsborough County, New Hampshire Median Age

40.7


Total

39.6


Male

41.8


Female

Hillsborough County, New Hampshire Adults

There are 327,471 adults, (62,902 of whom are seniors) in Hillsborough County, New Hampshire.

Hillsborough County, New Hampshire Age Dependency

56.1

Age Dependency Ratio

23.8

Old Age Dependency Ratio

32.3

Child Dependency Ratio

Hillsborough County, New Hampshire Sex Ratio

Female

207,641

50.27%

Male

205,394

49.73%

Hillsborough County, New Hampshire Population by Age

Hillsborough County, New Hampshire Renter vs Owner Occupied by Household Type

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Hillsborough County, New Hampshire Household Types

Type Owner Renter
Married82.9%17.1%
All66%34%
Male58.8%41.2%
Female50.2%49.8%
Non Family46.4%53.6%

66.0%

Rate of Home Ownership

Hillsborough County, New Hampshire Households and Families

Type Count Average Size Owned
All161,0862.5166
Married82,4213.1382.9
Non Family54,9171.3146.4
Female15,8483.2350.2
Male7,9003.0858.8

3.04

Average Family Size

2.51

Average Household Size

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Hillsborough County, New Hampshire Households by Type

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Education Attained Count Percentage
Less Than 9th Grade7,9992.75%
9th to 12th Grade14,9875.15%
High School Graduate75,05325.78%
Some College53,00918.21%
Associates Degree29,17010.02%
Bachelors Degree70,77324.31%
Graduate Degree40,17713.80%
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Hillsborough County, New Hampshire Educational Attainment by Sex (over 25)

Hillsborough County, New Hampshire Educational Attainment by Race

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Race Total High School Bachelors
White254,325237,96497,397
Hispanic15,00110,7582,908
Asian11,72110,3527,597
Black6,9415,8081,668
2+ Races4,0473,7181,308
Other Race2,3902,030786
Native American30927167
Islander14414479

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 64.82%.

Hillsborough County, New Hampshire Educational Attainment by Race

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Name Average Male Female
Overall$48,772$57,914$39,503
Less Than 9th Grade$29,565$34,605$25,030
High School Graduate$37,428$44,613$28,716
Some College$44,155$53,650$35,721
Bachelors Degree$60,841$77,282$48,227
Graduate Degree$76,938$102,352$63,847

$48,772

Average Earnings

$57,914

Average Male

$39,503

Average Female

Hillsborough County, New Hampshire Earnings by Educational Attainment

Hillsborough County, New Hampshire Language by Age

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Hillsborough County, New Hampshire Language

86.70% of Hillsborough County, New Hampshire residents speak only English, while 13.30% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 5.22% of the population.

Hillsborough County, New Hampshire Language

Hillsborough County, New Hampshire Poverty by Race

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Name Total In Poverty Poverty Rate
White341,47321,3636.26%
Hispanic27,4295,34819.50%
Black11,7662,69822.93%
Asian16,5811,6179.75%
Multiple10,2081,42914.00%
Other3,76146712.42%
Islander2184420.18%
Native477336.92%

7.77%

Overall Poverty Rate

6.86%

Male Poverty Rate

8.69%

Female Poverty Rate

Poverty in Hillsborough County, New Hampshire

The race most likely to be in poverty in Hillsborough County, New Hampshire is Black, with 22.93% below the poverty level.

The race least likely to be in poverty in Hillsborough County, New Hampshire is White, with 6.26% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.97%. Among those working part-time, it was 10.06%, and for those that did not work, the poverty rate was 16.46%.

Hillsborough County, New Hampshire Poverty

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Name Poverty
Less Than 9th Grade18.59%
High School9.11%
Some College5.99%
Bachelors or Greater3.19%

Hillsborough County, New Hampshire Poverty Rate by Education

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Rate Poverty
Female Unemployed28.48%
Male Unemployed19.59%
Female Employed3.64%
Male Employed2.79%

Hillsborough County, New Hampshire Poverty Rate by Employment Status and Sex

Hillsborough County, New Hampshire Income by Household Type

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Name Median Mean
Households$81,460$103,090
Families$100,503$121,465
Married Families$113,418$136,404
Non Families$47,468$61,886
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Income by Household Type

Hillsborough County, New Hampshire Marital Status

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Marriage Rates

51.3%

Overall Marriage Rate

52.3%

Male Marriage Rate

50.3%

Female Marriage Rate

Hillsborough County, New Hampshire Married by Age and Sex

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Hillsborough County, New Hampshire Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Hillsborough County, New Hampshire Marital Status by Race

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Hillsborough County, New Hampshire Marital Status

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26,449

Number of Veterans

24,287

Male Veterans

2,162

Female Veterans

War Veterans
Vietnam9,510
First Gulf War5,176
Second Gulf War3,988
Korea2,066
World War II935

Hillsborough County, New Hampshire Veterans by War

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Age Group Veterans
65 to 746,958
75+6,167
35 to 546,104
55 to 645,268
18 to 341,952

Hillsborough County, New Hampshire Veterans by Age

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Name Veterans % of Total
White25,3828.55%
Hispanic5402.94%
Black3804.55%
2+ Races3726.88%
Asian1381.05%
Other Race1254.42%
Native American5212.97%

Hillsborough County, New Hampshire Veterans by Race

Hillsborough County, New Hampshire Veterans by Education

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4.65%

Veteran Poverty Rate

27.11%

Veteran Disability Rate

Hillsborough County, New Hampshire Veterans by Education

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70.1%

Labor Force Participation

67.1%

Employment Rate

4%

Unemployment Rate

Hillsborough County, New Hampshire Employment by Age

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Hillsborough County, New Hampshire Employment by Race

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Hillsborough County, New Hampshire Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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40.52%

Born in Hillsborough County, New Hampshire

90.33%

Native Born

9.67%

Foreign Born

4.29%

Non Citizen

5.38%

Naturalized

Place of Birth

90.33% of Hillsborough County, New Hampshire residents were born in the United States, with 40.52% having been born in New Hampshire. 4.29% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Hillsborough County, New Hampshire Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources