Merrimack town Population

2010–2026

30,062

2026 projection

12% since 2020 (increase)

05K10K15K20K25K30K35K201020122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Merrimack town. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202630,062+3631.22%
202529,699+3631.24%
202429,336+4411.53%
202328,895+4151.46%
202228,480+1,3044.80%
202127,176+3411.27%
202026,835+2971.12%
201926,538+5372.07%
201826,001+720.28%
201725,929+920.36%

Showing 10 of 17 years.

Merrimack town Demographics

41.5median age

Median age

Female41.9 yrs
Male40.7 yrs

Adults

21,976
4,723 seniors · 21%17,253 other adults

Sex

Female 50.3% · 14,167Male 49.7% · 13,997

Population by age

MaleFemale85+ years, male: 9185+ years, female: 25680–84 years, male: 15180–84 years, female: 21075–79 years, male: 41875–79 years, female: 50370–74 years, male: 55970–74 years, female: 73865–69 years, male: 97365–69 years, female: 82460–64 years, male: 95560–64 years, female: 1,21155–59 years, male: 1,36855–59 years, female: 1,00750–54 years, male: 98450–54 years, female: 1,12145–49 years, male: 65345–49 years, female: 74740–44 years, male: 93940–44 years, female: 72535–39 years, male: 1,00035–39 years, female: 1,08830–34 years, male: 1,22730–34 years, female: 1,06025–29 years, male: 77825–29 years, female: 74320–24 years, male: 74320–24 years, female: 55215–19 years, male: 70215–19 years, female: 73510–14 years, male: 85410–14 years, female: 1,2215–9 years, male: 8425–9 years, female: 6610–4 years, male: 7600–4 years, female: 76585+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 282 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Merrimack town Income

$127,219median household income

Median household income

$127,219

Half of households earn more, half earn less

Median earnings

$74,044

Typical yearly pay for a worker 25 or older.

Poverty rate

3%

About 1 in 33 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Merrimack town Marital Status

57% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married57%60%54%
Never married28%31%25%
Divorced9%6%12%
Widowed5%2%7%
Separated1%<1%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year