Plymouth County Population 2018

Plymouth County's estimated population is 515,142 with a growth rate of 0.65% in the past year according to the most recent United States census data. Plymouth County is the 7th largest county in Massachusetts.

Year Population Growth Growth Rate
2017515,1423,3220.65%
2016511,8202,6270.52%
2015509,1932,6970.53%
2014506,4963,5750.71%
2013502,9213,4260.69%
2012499,4951,2970.26%
2011498,1982,3030.46%
2010495,89560,61913.93%
1990435,27629,8397.36%
1980405,43772,12321.64%
1970333,31484,86534.16%
1960248,44958,98131.13%
1950189,46820,64412.23%
1940168,8246,5134.01%
1930162,3115,3433.40%
1920156,96812,6318.75%
1910144,33730,35226.63%
1900113,98521,28522.96%
189092,70018,68225.24%
188074,0188,65313.24%
187065,3655970.92%
186064,7689,07116.29%
185055,6978,32417.57%
184047,3734,32910.06%
183043,0444,90812.87%
182038,1362,9678.44%
181035,1695,09616.95%
180030,0735381.82%
179029,5350.00%

Plymouth County Population Growth

Population Data via

Plymouth County Race Data

Race Population Percentage
White438,15985.06%
Black or African American52,56310.20%
Two or More Races9,4171.83%
Asian7,4081.44%
American Indian and Alaska Native1,5940.31%
Native Hawaiian and Other Pacific Islander7390.14%

Plymouth County Population Pyramid

0k5k10k15k20k Male Population0k5k10k15k20k 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