Census-designated place · New Hampshire
East Merrimack, New Hampshire
East Merrimack, census-designated place, in Hillsborough County, New Hampshire. East Merrimack had 5,081 people in the ACS 2020-2024 5-year estimates (±589). GEOID 3321780.
Residents, 2020-2024
5,081
±589 (90% margin)
2020 Census count: 5,176
Median household income
$87,311
±$4,502 (90% margin)
New Hampshire: $99,031
Median home value
$291,500
±$30,244 (90% margin)
New Hampshire: $402,500
Median gross rent
$1,952
±$158 (90% margin)
New Hampshire: $1,491
Where is East Merrimack and what county is it in?
East Merrimack is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Hillsborough County, New Hampshire. It covers 3.4 square miles of land, 1,533 residents per square mile in 2020.
East Merrimack is in the Manchester-Nashua, NH metropolitan statistical area (Census Bureau delineation, July 2023).
East Merrimack lies entirely within Merrimack, a town with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in East Merrimack, and is it growing?
The 2020-2024 American Community Survey puts East Merrimack's population at 5,081 (±589). The 2020 Census counted 5,176 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; East Merrimack is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | East Merrimack | Hillsborough County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 5,081 ±589 | 426,378 | no clear change |
| Households | 2,658 ±409 | 168,740 | +632 |
| Average household size | 1.90 ±0.14 | 2.48 | −0.28 |
| Housing units | 2,784 ±369 | 177,734 | +758 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in East Merrimack?
The median resident of East Merrimack is 41.1 years old; 13.1% are under 18 and 21.3% are 65 or older. The largest group is non-Hispanic white residents at 88.1%, then non-Hispanic residents of two or more races at 3.7%. 9.3% of residents were born outside the United States.
| Measure | East Merrimack | Hillsborough County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.1 ±6.1 | 41.0 | no clear change |
| Under 18 years | 13.1% ±2.5 pts | 19.6% | – |
| 65 years and over | 21.3% ±5.0 pts | 17.3% | – |
| Male | 45.1% ±4.7 pts | 50.2% | – |
| Hispanic or Latino (any race) | 3.2% ±2.0 pts | 8.5% | – |
| White alone, not Hispanic | 88.1% ±4.6 pts | 80.1% | no clear change |
| Black or African American alone, not Hispanic | 0.9% ±1.1 pts | 2.2% | – |
| Asian alone, not Hispanic | 2.9% ±1.9 pts | 4.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.7 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.0% | – |
| Two or more races, not Hispanic | 3.7% ±2.9 pts | 4.3% | – |
| Some other race alone, not Hispanic | 1.2% ±1.4 pts | 0.5% | – |
| Born outside the United States | 9.3% ±3.5 pts | 10.3% | – |
| Speak a language other than English at home (age 5+) | 9.6% ±3.9 pts | 13.9% | – |
| Civilian veterans (age 18+) | 9.2% ±3.7 pts | 6.9% | – |
| With a disability | 10.5% ±3.0 pts | 11.8% | – |
| No health insurance coverage | 3.5% ±2.1 pts | 5.5% | −4.8 pts |
| High school graduate or higher (age 25+) | 95.7% ±2.2 pts | 93.4% | – |
| Bachelor's degree or higher (age 25+) | 42.0% ±6.8 pts | 41.5% | no clear change |
| Graduate or professional degree (age 25+) | 10.4% ±3.6 pts | 16.1% | – |
| Lived in the same house a year earlier | 87.0% ±5.8 pts | 88.9% | – |
| Moved from another state in the past year | 6.5% ±5.0 pts | 3.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in East Merrimack earn?
Half of East Merrimack's 2,658 households earn less than $87,311 a year (±$4,502), against $103,545 in Hillsborough County and $99,031 in New Hampshire. In 2015-2019 the median was $62,119 in 2024 dollars, so it rose by $25,192 after inflation. 3.4% of residents live below the poverty line.
| Measure | East Merrimack | Hillsborough County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $87,311 ±$4,502 | $103,545 | +$25,192 |
| Mean household income | $104,140 ±$9,832 | $132,601 | – |
| Per capita income | $55,719 ±$4,519 | $54,111 | +$13,622 |
| People below the poverty line | 3.4% ±1.9 pts | 6.7% | −10.2 pts |
| Children under 18 below the poverty line | 0.0% ±5.3 pts | 8.5% | – |
| Households receiving SNAP | 1.2% ±1.1 pts | 6.6% | – |
| Households with a computer | 98.5% ±2.0 pts | 96.4% | – |
| Households with a broadband subscription | 93.2% ±3.7 pts | 93.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in East Merrimack?
Owners occupy 70.1% of East Merrimack's occupied homes and renters 29.9%. The median owner-occupied home is valued at $291,500 by its owner (±$30,244). The median renter pays $1,952 a month including utilities, and 24.0% of renters pay 35% or more of their income on rent.
| Measure | East Merrimack | Hillsborough County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $291,500 ±$30,244 | $421,100 | +$78,344 |
| Median gross rent | $1,952 ±$158 | $1,623 | +$339 |
| Renters paying 35% or more of income on rent | 24.0% ±12.6 pts | 37.7% | no clear change |
| Median monthly owner costs, with a mortgage | $1,855 ±$105 | $2,452 | – |
| Owner-occupied homes | 70.1% ±7.2 pts | 67.4% | no clear change |
| Renter-occupied homes | 29.9% ±7.2 pts | 32.6% | – |
| Housing units | 2,784 ±369 | 177,734 | +758 |
| Homeowner vacancy rate | 0.0% ±1.9 pts | 0.2% | – |
| Rental vacancy rate | 6.2% ±8.9 pts | 3.5% | – |
| Single-family detached homes | 18.5% ±4.5 pts | 56.6% | – |
| Mobile homes | 0.1% ±0.5 pts | 1.9% | – |
| Built 2020 or later | 2.0% ±1.4 pts | 1.1% | – |
| Built 2010 to 2019 | 3.7% ±1.6 pts | 5.6% | – |
| Built 1939 or earlier | 5.4% ±4.0 pts | 18.3% | – |
| Households with no vehicle | 3.6% ±2.9 pts | 5.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in East Merrimack work and get to work?
67.9% of East Merrimack's workers drive alone and 21.2% work from home. The average trip to work takes 23.1 minutes.
| Measure | East Merrimack | Hillsborough County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 74.1% ±5.6 pts | 70.4% | – |
| Unemployment rate | 0.1% ±0.3 pts | 3.1% | – |
| Drove alone to work | 67.9% ±6.4 pts | 70.7% | – |
| Carpooled | 9.1% ±5.6 pts | 7.3% | – |
| Public transportation | 0.4% ±0.7 pts | 0.6% | – |
| Walked | 1.4% ±1.5 pts | 1.8% | – |
| Worked from home | 21.2% ±5.8 pts | 18.1% | – |
| Mean travel time to work | 23.1 min ±3.1 | 27.3 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in East Merrimack?
2 census tracts lie mostly in East Merrimack (2020 census blocks). Their median household incomes run from $87,512 (Tract 141.01) to $97,337 (Tract 141.02).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 141.01Hillsborough County | 3,665 | $87,512 |
| Tract 141.02Hillsborough County | 2,836 | $97,337 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in East Merrimack) · Census block assignment files
How does East Merrimack compare with other places in New Hampshire?
East Merrimack ranks 146th of 235 places in New Hampshire with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 85th | 241 |
| Residents per square mile | 13th | 241 |
| Median household income | 146th | 235 |
| Per capita income | 72nd | 240 |
| Median home value | 172nd | 239 |
| Median gross rent | 17th | 221 |
| Poverty rate | 148th | 160 |
| Bachelor's degree or higher | 86th | 239 |
| Median age | 191st | 239 |
| Owner-occupied share | 172nd | 241 |
| Work from home | 52nd | 214 |
| Travel time to work | 185th | 241 |
East Merrimack's figures with every place in New Hampshire (CSV)
Every place in New Hampshire, sortable · Compare East Merrimack with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for East Merrimack?
17 of the 57 figures for East Merrimack on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for East Merrimack are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.