New Hampshire Demographics & Voter Profile
Population 1.4M · 91% White · 40% Independent voters · Shaheen retiring 2026 — open seat in a true swing states.
Racial & Ethnic Composition — Census 2020/2022
| Group | Population Share | Electorate Share | 2020 Biden % | Political Lean |
|---|---|---|---|---|
| Non-Hispanic White | 91% | 90% | 53% | Slight D statewide, R in north |
| Hispanic / Latino | 4% | 3% | 62% | Lean D |
| Asian American | 3% | 3% | 66% | Lean D |
| Black / Other | 2% | 4% | 78% | Lean D |
Age Breakdown
| Age Group | Share of Population | Share of Electorate | Partisan Lean |
|---|---|---|---|
| 18–29 | 14% | 10% | D+18 (UNH Durhamstudent vote) |
| 30–44 | 18% | 16% | D+8 |
| 45–64 | 28% | 35% | R+4 |
| 65+ | 19% | 26% | R+10 |
Urban / Suburban / Rural Split
| Area Type | Share of Voters | Key Areas | Lean |
|---|---|---|---|
| Southern Suburbs (NH-1) | 42% | Nashua, Salem, Derry (Hillsborough / Rockingham) | Competitive D+2 to R+2 |
| Seacoast / Portsmouth | 15% | Portsmouth, Dover, Exeter | D+12 |
| Concord / Manchester Urban | 18% | Manchester, Concord | D+4 to D+8 |
| Northern / Rural NH | 25% | Carroll, Coos, Grafton, Sullivan | R+15 to R+30 |
Education Breakdown
| Education Level | Share of Adults | Partisan Lean |
|---|---|---|
| College degree or higher | 40% | D+14 (Seacoast tech / healthcare workers) |
| Some college / Associate’s | 28% | R+8 |
| High school or less | 32% | R+20 |
Key Political Dynamics
Live Free or Die Culture
New Hampshire has no state income tax and no broad-based sales tax, reflecting a deep libertarian streak in the state’s political DNA. The Free State Project has relocated thousands of libertarians to NH since 2003, some of whom have been elected to the state legislature. This creates unusual cross-pressures: libertarian-leaning voters oppose gun polling and government mandates but also oppose the culture-war social conservatism of the national Republican Party, making them swing voters who sometimes tip elections.
Massachusetts Transplant Effect
Southern New Hampshire (Nashua, Salem, Londonderry) has grown significantly from Massachusetts residents seeking lower taxes, no income tax, and cheaper housing within commuting distance of Boston. Manchester-Boston Regional Airport connects the state economically to the Boston metro. These transplants bring Massachusetts political habits — higher Democratic lean among college-educated professionals — which has made Hillsborough County competitive where it was historically Republican. Rockingham County (southeastern NH) has followed a similar trajectory.
First-in-the-Nation Primary
New Hampshire holds the nation’s first presidential primary, creating a political culture where retail politics — small town halls, diners, direct voter contact — remains powerful. NH voters are experienced political consumers who often split tickets deliberately. The state has voted for the presidential winner in 10 of the last 12 elections. Its Independent voter dominance means national partisan waves are somewhat muted; the best candidate, not the party, often determines the outcome here.
2026 Electoral Implications
Senator Jeanne Shaheen (D) is retiring in 2026 after three Senate terms (2009-2026), creating the most competitive open Senate majority math race in New England. New Hampshire’s presidential lean is D+3 to D+5, making it genuinely competitive — the definition of a toss-up in an open-seat race.
Former Governor Chris Sununu (R) is the most likely Republican recruit. Sununu won the governorship four times in NH, in 2016, 2018, 2020, and 2022, often by double digits even as Biden and then Shaheen won statewide. Sununu has explicitly distanced himself from Trump. A Sununu vs. a strong Democrat nomination would be one of the nation’s premier Senate contests in 2026.
For Democrats, the challenge is mobilizing the southern NH suburban vote (Hillsborough, Rockingham) while holding the Seacoast and academic communities (Durham, Keene, Hanover). Turnout in Manchester — traditionally Democratic but showing R drift — is a key variable. A national Democratic environment favoring the party would help, but NH’s independent voters will ultimately decide this race on candidate quality.