According to the most recent Plymouth County Massachusetts demographics data available from the 2022 Census Bureau released in the American Community Survey in November of 2022, Figure 1 Plymouth County depicts it has a Population 2021 of 527,602 which is in the mid range of other counties in the greater region. The county with the highest population in the area is Suffolk County which depicts a population of 792,647 (50.2% larger). Figure 3 uses the Plymouth County population data for a comparison of the population growth/population change estimates from the years 2010 to 2021 and Plymouth County Massachusetts shows an increase of 32,683 (7%).
The total Plymouth County Massachusetts greater area population percent change for all areas for the years from 2010 to 2021 is shown in Figure 4 and for Plymouth County shows it has a Population Change of 6.6% which is in the mid range of other counties in the local area.
Looking at the Plymouth County population density (measured as people per square mile) and providing comparisons to both the national and state average population density in Figure 5, Plymouth County Massachusetts depicts it has 800 people per square mile which is less than most other counties in the metro area. The next higher as measured by population density is Bristol County-MA 30.1% larger with population density of 1,041. The county with the highest population density in the area is Suffolk County which depicts a people per square mile of 13,606 ( markedly bigger). Figure 6 provides Plymouth County demographics for the overall median age for all people in the region and Plymouth County shows it has a Median Age of 42.6 which is in the mid range of other counties in the metropolitan area. The county with the highest overall median age of all people in the area is Barnstable County which shows an age of 53.9 (26.5% larger). Figure 9 shows the Plymouth County Massachusetts Hispanic (including non Hispanic whites) population household ethnicity in the region and Plymouth County shows it has a Hispanic or Latino of 4.2% which is in the middle range of other counties in the greater region.
Plymouth County Families and Marital Status Charts
Figure 11 compares the average household size using the average number of people in a family for Plymouth County households. Plymouth County depicts it has a Family Size of 3.2 which is the third most average family size of all other counties in the greater Plymouth County region. The county with the highest average family size in the area is Dukes County which depicts an average family size of 3.9 (20.9% larger).
Looking at Plymouth County households that are headed by a husband and wife as a percent of all families in Figure 12, Plymouth County shows it has a Married-couple family of 76% which is less than most other counties in the local area. The county with the highest percent of people in a husband and wife family in the area is Bristol County-RI which shows a husband and wife family percent of 81% (only about 5.7% larger).
The next section of charts provide a detailed look at mothers and baby births that occurred over the past 12 months. Figure 13 shows the rate of women aged 15 to 50 years old who have given birth. Plymouth County shows it has a Birth Rate of 5.4% which is the second most of all the counties in the greater region. The county with the highest percent of women who gave birth in the area is Dukes County which shows a birth rate of 5.5% ( only slightly larger).
The next set of demographic data looks at the marital status for Plymouth County households which is useful for internet research. Figure 16 compares the total number of single people in each area. Plymouth County depicts it has a Total Single People of 47% which is less than most other counties in the local area. The county with the highest percent of people who are single for any reason in the area is Suffolk County which depicts a percent single of 65% (38.0% larger). Comparing percent of people who are single for any reason to the United States average of 50%, Plymouth County is about 6.6% smaller. Also, compared to the state of Massachusetts, percent of people who are single for any reason of 52%, Plymouth County is about 9.7% smaller.
Plymouth County Citizenship Demographics Charts
Plymouth County Birthplace Demographic Charts
Figure 19 looks at the detailed country of origin demographic research for foreign-born people in this place. Click column to sort.
For comparison purposes, Figure 20 shows detailed statistic data for the entire United States. In particular, this diagram breaks down the detailed country of origin foreign-born people in the entire U.S. in order to compare with the data provided in the prior diagram which shows only for the local area. Both this diagram and the prior diagram are sorted the same way to facilitate comparison between the two. Click column to sort.
Cities marked with an asterisk ("*") should resemble a city or town but do not have their own government (i.e. Mayor, City Council, etc.) These places should be recognizable by the local community but their boundaries have no legal status. Technically these include both Census Designated Places (CDP) and Census County Divisions (CCD) which are defined by the Census Bureau along with local authorities. (For more information, see:
Census Designated Place or "CDP")
and Census County Division "CCD".)
For comparison purposes, the US national average and the state average value are provided. Additionally, the "Combined Statistical Area" or CSA is shown that is closest to the city, county, or zip code shown. A CSA is a large grouping of adjacent metropolitan areas that identified by the Census Bureau based on social and economic ties. (See: Combined Statistical Area)
Data sources - Mouse over icon in upper right corner of each chart for information.