New Hampshire Citizen Voting-age Population By County in 2011 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2011, the citizen voting-age population for New Hampshire was 995,220 and represented 75.63% of the total New Hampshire population.

Among all New Hampshire counties, Hillsborough had the highest citizen voting-age population (290.27K), followed by Rockingham (222.00K), and Merrimack (112.15K).

In terms of percentages, Carroll had the highest percentage of its population being citizens of voting-age (80.08%), followed by Coos (79.67%), and Cheshire (78.97%).

The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.

You can see similar information for other states and by state for the United States.

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New Hampshire Citizen Voting-age Population By County in 2011
New Hampshire Citizen Voting-age Population By County in 2011
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County Citizen Voting-age Population % of County Population
Hillsborough 290270 72.52
Rockingham 221995 75.21
Merrimack 112150 76.40
Strafford 95035 77.35
Grafton 69350 78.19
Cheshire 61045 78.97
Belknap 46705 77.63
Carroll 38290 80.08
Sullivan 33915 77.68
Coos 26470 79.67