New Hampshire

RETURN TO MAP

Click the links below to view state facts.

New Hampshire Population News Articles

Population Density

Historic & Projected Growth

Population by County


POPULATION DENSITY

People per square mile, 2010:   147.0

People per square mile, 2020: 153.8


HISTORIC & PROJECTED GROWTH 1790 TO 2040

Year
Population
1790
141885
1800
183858
1810
214460
1820
244161
1830
269328
1840
284574
1850
317976
1860
326,073
1870
318,300
1880
346,991
1890
376,530
1900
411,588
1910
430,572
1920
443,083
1930
465,293
1940
491,524
1950
533,242
1960
606,921
1970
737,681
1980
920,610
1990
1,109,252
2000
1,235,786
2010
1,316,470
2020
1,377,529
2030
*1,385,799
2040
*1,393,451

Sources: Census figures from U.S. Bureau of the Census & *Estimates from Weldon Cooper Center, Demographics Research Group
(The Census Bureau and Weldon Cooper Center have not yet provided updated State projections to reflect 2020 census numbers.)


Population by County

Census 2020 Population
Census 2010 Population
Change from 2020
Percent Change
NEW HAMPSHIRE
1,377,529
1,316,470
61,059
4.64%
Belknap County
63705
60,088
3,617
6.02%
Carroll County
50107
47,818
2,289
4.79%
Cheshire County
76458
77,117
-659
-0.85%
Coos County
31268
33,055
-1,787
-5.41%
Grafton County
91118
89,118
2,000
2.24%
Hillsborough County
422937
400,721
22,216
5.54%
Merrimack County
153808
146,445
7,363
5.03%
Rockingham County
314176
295,223
18,953
6.42%
Strafford County
130889
123,143
7,746
6.29%
Sullivan County
43063
43,742
-679
-1.55%

SOURCE: U.S. Bureau of the Census


New Hampshire Population News Articles

Warming winters are shrinking crucial alpine growing season in New Hampshire’s Presidential Range – Feb 14, 2026

New Hampshire ends vehicle emissions testing contract, violating Clean Air Act – Feb 5, 2026

New Hampshire police agencies cooperating with ICE – Jan 30, 2026

New Hampshire ekes out another small population gain due to inmigration – Jan 30, 2026

NHPR Presents: Safe to Drink – Jan 29, 2026

Report Shows NH Building Homes at Fastest Pace in Nearly Two Decades – Jan 27, 2026

Nashua officials propose adding public bathrooms as homelessness has growing impact on businesses – Oct 10, 2025

Waiting for updates on PFAS remediation, Merrimack strives to keep contaminated dirt contained – Sept 29, 2025

To get ‘toxic stew’ out of state’s lakes, legislators eye new ways to fund cyanobacteria mitigation – Sept 24, 2025

New Hampshire experiences worst drought in 25 years – Sept 23, 2025

New Hampshire’s snowpack is shrinking. Researchers are still uncovering the scope of what it means.  – Sept 17, 2025

What’s the connection between hotter, wetter summers in NH and climate change? – June 11, 2025

Four of New Hampshire’s 10 counties now deputized to work with ICE – June 9, 2025

Air quality alert issued in every New Hampshire county; In effect until Monday at 10 a.m. – June 9, 2025

Advocates say ski resort’s wastewater may contaminate Lake Sunapee. State regulators disagree. – June 3, 2025

These Are The Fastest-Growing Communities In New Hampshire, New Data Shows – May 27, 2025

Keene students present projects at NH Drinking Water Festival – May 15, 2025

Counties in New Hampshire where landslides pose the greatest threat – Dec 2, 2024

Counties with the worst droughts in New Hampshire – Nov 22, 2024

Bringing Climate into the Classroom: New Hampshire Students Push for Increased Climate Literacy – Nov 15, 2024

Climate change could affect fall colors. 30 years of data from N.H. might provide insights on how – Nov 7, 2024

New Hampshire Ranks 5th Best State in 2024 Drought Analysis – Sept 4, 2024

New Hampshire communities take steps to fight back against mosquito-borne illnesses – Aug 30, 2024

New Hampshire’s Population Increasing – Aug 21, 2024

Housing is a top issue for New Hampshire voters – June 21, 2024

New Hampshire’s population is increasing, especially in rural areas – June 19, 2024

Critics say industry has had outsized role in shaping New Hampshire’s new landfill regulations – June 13, 2024

Where refugees in New Hampshire are arriving from – June 10, 2024

New Hampshire rivers change in wake of recent floods, warming climate – June 5, 2024

NH asks US Supreme Court to block lawsuits against fossil fuel companies – May 28, 2024

NH among highest in country for housing need – October 18, 2023

Discover the Largest Cities in New Hampshire (By Population, Total Area, and Economic Impact) – October 10, 2023

NH Business: While millions of NH forest acres are protected, NH Forest Society Pres. says climate change is threat of our century – October 1, 2023

How undocumented immigrants in N.H. make a living without the right to drive – September 27, 2023

Culverts, climate change and the future of NH’s Seacoast – September 23, 2023

When it rained, it poured: 2023 was NH’s wettest summer yet – September 22, 2023

Flood watch issued for much of New Hampshire – July 10, 2023

New Hampshire Food Bank fights new, ‘disconcerting’ obstacles to food security – July 10, 2023

Population Gains Widespread in NH Due to Migration – June 22, 2023

How Safe Are NH’s Lakes, Beaches And Rivers For Swimming And Boating – June 13, 2023

Activists host ‘retirement party’ for New England’s last running coal plant, but its future is uncertain – June 12, 2023

Seeking a role in NH’s EV future – December 15, 2022

LCHIP Grants Enable The Nature Conservancy in New Hampshire to protect drinking water, wildlife resources in two Granite State communities. – December 14, 2022

New Hampshire lags behind other New England states in climate change preparedness – December 10, 2022

Portsmouth Naval Shipyard works to become more resilient as climate changes – November 30, 2022

New Hampshire farms get grants to prepare for climate change – November 21, 2022

Half of New Hampshire is in a moderate drought. Climate change could make that more common. – July 11, 2022

As climate warms, tick danger grows for New Hampshire moose population – June 29, 2022

University of New Hampshire research warns Granite State climate change already underway – June 29, 2022

Dartmouth study finds road salt is threatening lakes in our region – February 24, 2022

New Hampshire reaches $25M deal with Monsanto over PCBs – February 22, 2022

Statewide housing review starts with survey in New Hampshire – February 19, 2022

NEW HAMPSHIRE TOWN POLLUTED WITH PFAS HAS ELEVATED CANCER RATES – February 12, 2022