Merrimack County, New Hampshire: Industrial Catholic Metro county. In 2024, voted D+5%. Republican peak: R+43 in 1956.
Key facts
- 2024 presidential margin
- D+5MIT Election Lab
- Political typology
- Industrial Catholic MetroAkashic typology
- Population
- 155,9672024 5-year
- Median household income
- $97,0042024 5-year
- White (non-Hispanic)
- 90.8%2024 5-year
- Black
- 1.6%2024 5-year
- Hispanic / Latino
- 2.7%2024 5-year
- Peak Democratic margin
- D+22 in 1964MIT Election Lab
- Peak Republican margin
- R+43 in 1956MIT Election Lab
- Most similar
- York County, ME · similarity 0.98
2024 results by precinct
2024 precinct map of Merrimack CountyPrecinct-level 2024 presidential results for Merrimack County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | −1.6% |
| 1896 | −37.5% |
| 1900 | −17.4% |
| 1904 | −21.6% |
| 1908 | −17.0% |
| 1912 | +0.9% |
| 1916 | −0.0% |
| 1920 | −17.2% |
| 1924 | −23.4% |
| 1928 | −21.5% |
| 1932 | −4.4% |
| 1936 | −2.9% |
| 1940 | −0.8% |
| 1944 | −4.3% |
| 1948 | −19.4% |
| 1952 | −35.8% |
| 1956 | −43.4% |
| 1960 | −21.1% |
| 1964 | +22.4% |
| 1968 | −19.8% |
| 1972 | −36.4% |
| 1976 | −18.7% |
| 1980 | −27.4% |
| 1984 | −34.7% |
| 1988 | −22.4% |
| 1992 | +3.9% |
| 1996 | +14.5% |
| 2000 | +0.9% |
| 2004 | +5.1% |
| 2008 | +13.9% |
| 2012 | +12.7% |
| 2016 | +3.0% |
| 2020 | +9.8% |
| 2024 | +5.2% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 48,181 | 43,365 | 92,979 | ||
| D | 48,533 | 39,711 | 90,133 | ||
| D | 40,198 | 37,674 | 83,648 | ||
| D | 44,756 | 34,524 | 80,514 | ||
| D | 45,078 | 34,010 | 79,719 | ||
| D | 39,975 | 36,060 | 76,647 | ||
| D | 30,622 | 30,028 | 63,684 | ||
| D | 29,381 | 21,231 | 56,200 | ||
| D | 24,437 | 22,114 | 58,834 | ||
| R | 18,637 | 29,535 | 48,686 | ||
| R | 13,510 | 27,925 | 41,579 | ||
| R | 12,083 | 23,584 | 41,960 | ||
| R | 14,865 | 21,853 | 37,282 | ||
| R | 11,737 | 25,354 | 37,453 | ||
| R | 12,711 | 19,289 | 33,292 | ||
| D | 19,818 | 12,564 | 32,382 | ||
| R | 13,278 | 20,395 | 33,673 | ||
| R | 8,711 | 22,060 | 30,774 | ||
| R | 10,310 | 21,824 | 32,134 | ||
| R | 11,171 | 16,586 | 27,935 | ||
| R | 13,382 | 14,599 | 27,983 | ||
| R | 14,692 | 14,923 | 29,615 | ||
| R | 13,645 | 14,456 | 28,319 | ||
| R | 12,805 | 13,986 | 26,908 | ||
| R | 10,139 | 15,724 | 25,935 | ||
| R | 8,283 | 13,587 | 22,692 | ||
| R | 8,976 | 12,748 | 21,872 | ||
| R | 5,967 | 5,970 | 12,144 | ||
| D | 4,741 | 4,632 | 11,853 | ||
| R | 4,846 | 6,932 | 12,267 | ||
| R | 4,740 | 7,433 | 12,443 | ||
| R | 5,248 | 7,517 | 13,039 | ||
| R | 3,310 | 7,715 | 11,749 | ||
| R | 5,919 | 6,116 | 12,309 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
Irish
20.2%
English
19.7%
French
11.6%
German
9.0%
Italian
8.1%
American
4.9%
Scottish
4.1%
African American
1.3%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 42.9 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$97,004
Merrimack County ranks in the top 5% of US counties.
Merrimack County$97,004
New Hampshire$99,031
United States$80,734
Merrimack County ranks in the top 5% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
7.6%
Child poverty is below the national average.
Children under 187.7%
Working age (18–64)7.6%
Seniors (65+)7.7%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
94.7%
speak English only
Other Indo-European2.5%
Spanish1.4%
Asian & Pacific Islander0.7%
Other languages0.6%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 72.5% of residents not counted as adherents by any reporting body.
Merrimack County anchors central New Hampshire with a mix of state-capital civics in Concord and working-class mill-town heritage, producing margins that have shifted modestly toward Democrats over the past decade while remaining genuinely competitive.
Its margins are typically close. The Democratic margin reached twenty-two points in 1964; the Republican margin reached forty-three points in 1956. Between 2020 and 2024 the county moved five points toward the Republican candidate; the 2024 margin was five points.
Its demographics sit near national norms: a 91% non-Hispanic-white share, a median household income of $97,004, and a 8% poverty rate. The county's voting pattern over the last decade is most similar to that of York County and Lincoln County.
Most similar counties
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Merrimack County, New Hampshire. Akashic. https://akashic.app/county/33013/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in New Hampshire
More industrial catholic metro counties
Frequently asked questions
How did Merrimack County, New Hampshire vote in 2024?
In 2024, Merrimack County, New Hampshire voted Democratic by 5.2 points (D+5), carried by the Democratic candidate. Out of 92,979 votes cast, 48,181 went Democratic and 43,365 went Republican.
What is Merrimack County, New Hampshire's political typology?
Akashic places Merrimack County, New Hampshire in the "Industrial Catholic Metro" typology — Mid-size industrial metros with Catholic ethnic roots — among the most competitive, swing-prone ground in the country. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 11 times, Republican 23 times, and other 0 times.
When did Merrimack County, New Hampshire last vote Republican?
The most recent presidential election in which Merrimack County, New Hampshire voted Republican was 1988.
How many people live in Merrimack County, New Hampshire?
Merrimack County, New Hampshire has a population of 155,967 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Merrimack County, New Hampshire?
Median household income in Merrimack County, New Hampshire is $97,004 — above the national median of $80,734. The New Hampshire state median is $99,031.
What is the political history of Merrimack County, New Hampshire?
Akashic tracks 38 presidential elections in Merrimack County, New Hampshire from 1876 to 2024. Of those, 11 went Democratic and 23 went Republican. The county's typology — "Industrial Catholic Metro" — captures where that record, its demographics, and its recent swing place it among American communities.