US Census Data

Merrimack County vs Strafford County

A side-by-side comparison of Merrimack County and Strafford County: population, income, housing, and more.

Merrimack County and Strafford County are counties in New Hampshire. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Merrimack County has the higher population (155,018 vs 131,743 in Strafford County). Merrimack County has the higher median household income ($93,944 vs $86,564 in Strafford County). Strafford County has the higher median home value ($332,400 vs $330,600 in Merrimack County).

Population, income & housing

Merrimack CountyStrafford County
Population155,018131,743
Median age42.6 yrs37.9 yrs
Median household income$93,944$86,564
Median home value$330,600$332,400
Median gross rent$1,293$1,413
Housing units66,08056,162
Homeownership rate73.5%67.0%
Bachelor's degree or higher38.1%38.5%
Unemployment rate3.1%3.6%

Trends (ACS 5-year, 2019–2023)

Merrimack CountyStrafford County
Population149,917 → 155,018 (+3.4%)129,124 → 131,743 (+2.0%)
Median household income$75,737 → $93,944 (+24.0%)$72,960 → $86,564 (+18.6%)
Median home value$237,600 → $330,600 (+39.1%)$235,900 → $332,400 (+40.9%)
Median gross rent$1,042 → $1,293 (+24.1%)$1,091 → $1,413 (+29.5%)

Merrimack County

Population
149,917155,018
Median household income
$75,737$93,944
Median home value
$237,600$330,600
Median gross rent
$1,042$1,293

Strafford County

Population
129,124131,743
Median household income
$72,960$86,564
Median home value
$235,900$332,400
Median gross rent
$1,091$1,413

Age & race/ethnicity

Age distribution (share)

Merrimack CountyStrafford County
Under 54.5%4.5%
5 to 1714.1%13.5%
18 to 249.1%14.5%
25 to 3412.7%13.7%
35 to 4412.5%11.9%
45 to 5412.6%11.8%
55 to 6415.1%13.7%
65 to 7411.9%10.0%
75 and over7.4%6.5%

Race & ethnicity (share)

Merrimack CountyStrafford County
White (non-Hispanic)90.6%88.1%
Black or African American1.5%1.2%
American Indian & Alaska Native0.1%0.0%
Asian1.6%2.6%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.2%0.4%
Two or more races3.3%4.5%
Hispanic or Latino2.6%3.1%

Educational attainment (age 25+)

Share of adults 25+

Merrimack CountyStrafford County
No high school diploma6.3%5.3%
High school graduate28.2%26.1%
Some college or associate's27.4%30.0%
Bachelor's degree22.2%24.3%
Graduate or professional degree15.9%14.2%

Commute to work

How workers get to work (share)

Merrimack CountyStrafford County
Drove alone75.0%72.4%
Carpooled7.7%6.0%
Public transit0.3%1.5%
Walked2.7%3.3%
Bicycle0.3%0.2%
Worked from home13.1%15.4%
Other means0.9%1.2%

Housing

Units in structure (share)

Merrimack CountyStrafford County
1-unit, detached63.2%56.0%
1-unit, attached4.4%4.0%
2 to 4 units11.5%13.3%
5 to 19 units7.2%9.4%
20 or more units7.1%9.0%
Mobile home & other6.6%8.4%

Poverty & households

Merrimack CountyStrafford County
Poverty rate7.1%8.8%
Average household size2.462.39
Mean commute (minutes)2726
Median year structure built19771978

Full profiles

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