Barnwell County Population Charts

According to the most recent Barnwell County South Carolina demographics data available from the 2022 Census Bureau released in the American Community Survey in November of 2022, Figure 1 Barnwell County depicts it has a Population 2021 of 20,801 which is the third most populous of all other counties in the greater Barnwell County region. The county with the highest population in the area is Aiken County which depicts a population of 168,045 ( very much bigger). Figure 3 uses the Barnwell County population data for a comparison of the population growth/population change estimates from the years 2010 to 2021 and Barnwell County South Carolina shows a decline of 1,820 (8%).

The total Barnwell County South Carolina greater area population percent change for all areas for the years from 2010 to 2021 is shown in Figure 4 and for Barnwell County shows it has a Population Change of -8.0% which is in the middle range of other counties in the metropolitan area.

Looking at the Barnwell County population density (measured as people per square mile) and providing comparisons to both the national and state average population density in Figure 5, Barnwell County South Carolina shows it has 38 people per square mile which is the second most people per square mile of all the counties in the greater Barnwell County region. The next lower population density is Bamberg County about 10.3% smaller with population density of 34. The county with the highest population density in the area is Aiken County which depicts a people per square mile of 157 (approximately 4.1 times bigger). Figure 6 provides Barnwell County demographics for the overall median age for all people in the region and Barnwell County depicts it has a Median Age of 41.3 which is the third most of all other counties in the metro area. The county with the highest overall median age of all people in the area is Allendale County which depicts an age of 43.9 (6.3% larger).

The next demographic analysis (Figure 7) looks at large generational Barnwell County population groups (and can be useful internet research for employment related research or identifying areas with retirees). Key findings in this chart includes that Barnwell County South Carolina has the smallest proportion of people between 20 and 29 years old at 10.1% of the total.

Figure 8 illustrates the overall diversity breakdown for Barnwell County population and ethnicity groups in the area. (note: Hispanic/Latino is broken out separately in the next diagram and also the group denoted as Native ethnicity includes Native American, and Hawaiian and Other Pacific Islander.) Barnwell County South Carolina has the smallest proportion of Black population at 0.1% of the total. Second, it has the smallest proportion of Native population at 1.8% of the total. Figure 9 shows the Barnwell County South Carolina Hispanic (including non Hispanic whites) population household ethnicity in the region and Barnwell County depicts it has a Hispanic or Latino of 2.7% which is less than most other counties in the surrounding region.

Barnwell County Families and Marital Status Charts

Figure 11 compares the average household size using the average number of people in a family for Barnwell County households. Barnwell County shows it has a Family Size of 3.4 which is less than most other counties in the greater region. The county with the highest average family size in the area is Screven County which shows an average family size of 3.8 (12.2% larger).

Looking at Barnwell County households that are headed by a husband and wife as a percent of all families in Figure 12, Barnwell County indicates it has a Married-couple family of 62% which is the second smallest as measured by percent of people in a husband and wife family of all the other counties in the local area. The county with the highest percent of people in a husband and wife family in the area is Aiken County which depicts a husband and wife family percent of 74% (19.6% 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. Barnwell County depicts it has a Birth Rate of 2.8% which is the second smallest in order of percent of women who gave birth of all the other counties in the area. The county with the highest percent of women who gave birth in the area is Allendale County which shows a birth rate of 8.7% (approximately 3.1 times bigger). Figure 14 shows the breakdown of the mother's age for all baby births that occurred in the last 12 months and it has the largest proportion of percent of births to mothers aged 15 to 19 at 48% of the total and is ranked #1. Second, it has less than most other counties in the local area in order of percent of births to mothers aged 25 to 29 at 11% of the total. Third, it has the largest proportion of percent of births to mothers aged 35 to 39 at 5% of the total and is ranked #1.

The next set of demographic data looks at the marital status for Barnwell County households which is useful for internet research. Figure 16 compares the total number of single people in each area. Barnwell County shows it has a Total Single People of 57% which is the third most percent single people of all other counties in the greater Barnwell County region. The county with the highest percent of people who are single for any reason in the area is Allendale County which shows a percent single of 63% (10.9% larger). Comparing percent of people who are single for any reason to the United States average of 50%, Barnwell County is 13.5% larger. Also, compared to the state of South Carolina, percent of people who are single for any reason of 50%, Barnwell County is 14.7% larger.

Barnwell County Citizenship Demographics Charts

The next diagram (Figure 18) shows the year of entry that non citizens entered the United States. The year of entry can show the rate of flow at various points of time in the past for when they entered the U.S. has the smallest proportion of non citizens who entered the US after 2010 at 9% of the total. Second, it has the largest proportion of non citizens who entered the US between 2000 to 2009 at 76% of the total and is ranked #1. Third, it has the largest proportion of non citizens who entered the US before 1990 at 15% of the total and is ranked #1.

Barnwell 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.