Rockingham County Population 2018

Rockingham County's estimated population is 306,363 with a growth rate of 0.80% 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
2017306,3632,4410.80%
2016303,9221,7660.58%
2015302,1561,1940.40%
2014300,9621,9690.66%
2013298,9931,2110.41%
2012297,7821,8190.61%
2011295,9636800.23%
2010295,28349,43820.11%
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
White288,01394.01%
Asian5,9231.93%
Two or More Races4,1841.37%
Black or African American2,7830.91%
American Indian and Alaska Native5850.19%
Native Hawaiian and Other Pacific Islander1520.05%

Rockingham County Population Pyramid

0k2k4k6k8k10k12k14k Male Population0k2k4k6k8k10k12k14k Female Population8580757065605550454035302520151050
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