Rockingham County Population 2017

Rockingham County's estimated population is 303,251 with a growth rate of 0.53% in the past year according to the most recent United States census data. Rockingham County is the 2nd largest county in New Hampshire.

Year Population Growth Growth Rate
2016303,2511,6110.53%
2015301,6401,1080.37%
2014300,5321,8260.61%
2013298,7061,0120.34%
2012297,6941,6930.57%
2011296,0016620.22%
2010295,33949,49420.13%
1990245,84555,50029.16%
1980190,34551,39436.99%
1970138,95139,92240.31%
196099,02928,97041.35%
195070,05911,91720.50%
194058,1424,3928.17%
193053,7501,2522.38%
192052,4983100.59%
191052,1881,0702.09%
190051,1181,4682.96%
189049,6505861.19%
188049,0641,7673.74%
187047,297-2,825-5.64%
186050,1229281.89%
185049,1943,4237.48%
184045,7711,4463.26%
183044,325-10,921-19.77%
182055,2465,07110.11%
181050,1754,74810.45%
180045,4272,2585.23%
179043,1690.00%

Rockingham County Population Growth

Population Data via

Rockingham County Race Data

Race Population Percentage
White288,01394.98%
Asian5,9231.95%
Two or More Races4,1841.38%
Black or African American2,7830.92%
American Indian and Alaska Native5850.19%
Native Hawaiian and Other Pacific Islander1520.05%

Rockingham County Population Pyramid

0k2k4k6k8k10k12k14kRockingham County Male Population0k2k4k6k8k10k12k14kRockingham County Female Population

Population of Cities in Rockingham County

City 2010 Census 2016 Estimated Growth Growth Rate
Portsmouth21233214852521.19%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990