Placer County Population Charts

According to the most recent Placer County California demographics data available from the United States Census Bureau released in the American Community Survey in December of 2019, Figure 1 Placer County shows it has a population of 380,077 which is the highest of all counties in the greater Placer County region. Figure 3 uses the Placer County population data for a comparison of the population growth/population change estimates from the years 2010 to 2018 and Placer County California shows an increase of 31,645 (9%).

The total Placer County California greater area population percent change for all areas for the years from 2010 to 2018 is shown in Figure 4 and for Placer County indicates it has a population percent change of 9.1% which is ranked #1 of all counties in the greater Placer County region.

Looking at the Placer County population density (measured as people per square mile) and providing comparisons to both the national and state average population density in Figure 5, Placer County California depicts it has 270 people per square mile which is the second most people per square mile of all the counties in the greater Placer County region. The next lower population density is Yuba County approximately half the size with population density of 119. The county with the highest population density in the area is Carson City and County which depicts a people per square mile of 377 (39.4% larger). Figure 6 provides Placer County demographics for the overall median age for all people in the region and Placer County shows it has an overall median age of all people of 41.9 which is the second smallest when ranked by overall median age of all people of all the other counties in the greater region. The county with the highest overall median age of all people in the area is Sierra County which depicts an age of 55.5 (32.5% larger). The Placer County California population data for median age broken out by gender for both men versus the median age of women is shown in Figure 7. Placer County California shows a median age of men about 6.9% smaller as the median age of women.

The next demographic analysis (Figure 8) looks at large generational Placer 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 Placer County California has one of the largest proportions of people less than 20 years of age at 24.8% of the total and is ranked #2. The only larger county being Yuba County with 30.1%. Second, it has the largest proportion of people between 40 and 49 years old at 13.4% of the total and is ranked #1. Third, it has the second smallest as measured by people less than 20 years of age of all the other counties in the local area when sorted by people between 60 and 69 years old at 12.3% of the total.

Figure 9 illustrates the overall diversity breakdown for Placer 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.) Placer County California has the largest proportion of Asian population at 7.2% of the total and is ranked #1. Second, it has the smallest proportion of Native population at 0.7% of the total. Figure 10 shows the Placer County California Hispanic (including non Hispanic whites) population household ethnicity in the region and Placer County depicts it has a people who are Hispanic or Latino of 13.8% which is the third most Hispanic Population of all other counties in the greater Placer County region. Figure 11 compares the ratio of the amount of men to the amount of women and shows total male population only about 4.9% smaller as the total female population.

Placer County Marital Status and Families Charts

Figure 12 shows the detailed marriage characteristics broken down by %residents who are married, never married, single, divorced, and widowed. Placer County has the largest proportion of total percent married at 58% of the total and is ranked #1. Second, it has less than most other counties in the area when ranked by never married percent at 26% of the total. Third, it has the smallest proportion of percent divorced at 11% of the total. Figure 14 compares the average household size using the average number of people in a family for Placer County households. Placer County shows it has an average family size of 3.3 which is the second most average family size of all the counties in the greater Placer County region. The county with the highest average family size in the area is Yuba County which shows an average family size of 3.4 (only about 5.3% larger).

Figure 15 shows the overall ratio of Placer County households for families to the total number of Placer County households and that Placer County depicts it has a percent of people who are in a family of 70% which is the third most families percent of all other counties in the greater Placer County region. The county with the highest percent of people who are in a family in the area is Yuba County which shows a families percent of 71% ( only slightly larger).

Looking at Placer County households that are headed by a husband and wife as a percent of all families in Figure 16, Placer County depicts it has a percent of people in a husband and wife family of 82% which is the second most husband and wife family percent of all the counties in the greater Placer County region. The county with the highest percent of people in a husband and wife family in the area is El Dorado County which shows a husband and wife family percent of 84% ( only slightly larger). Figure 17 shows Placer County demographics for the head of household for each place using a breakdown of married-couple, male-headed alone, and female-headed alone. Placer County California has the percentage of households less than most other counties in the metro area at 5.5% of the total.

Placer County Mothers and Children Charts

The next section of charts provide a detailed look at mothers and baby births that occurred over the past 12 months. Figure 18 shows the rate of women aged 15 to 50 years old who have given birth. Placer County depicts it has a percent of women who gave birth of 4.4% which is less than most other counties in the surrounding region. The county with the highest percent of women who gave birth in the area is Yuba County which depicts a birth rate of 7.6% (72.3% larger). Figure 19 shows the breakdown of the mother's age for all baby births that occurred in the last 12 months and has the percentage of percent of births to mothers aged 15 to 19 less than most other counties in the metro area at 0% of the total. Second, it has the second smallest when ranked by percent of births to mothers aged 15 to 19 of all the other counties in the metro area in order of percent of births to mothers aged 20 to 24 at 10% of the total. Third, it has one of the largest proportions of percent of births to mothers aged 45 to 50 at 4% of the total and is ranked #2. The only larger county being Amador County with 11%.

In Figure 20, the demographic data for Placer County California teenager birth rate is shown (women between the ages of 15 and 19.) Placer County shows it has a teenager birth rate of 0% which is less than most other counties in the local area. The county with the highest teenager birth rate in the area is Yuba County which depicts a births to a teenager of 5% ( substantially bigger).

In Figure 21, the percentage of all births in the last 12 months to mothers that were unmarried is shown (unwed mothers.) Placer County shows it has a percent of unwed women who have given birth of 23% which is less than most other counties in the area. The county with the highest percent of unwed women who have given birth in the area is Nevada County which shows an unwed mother birth rate of 35% (52.8% larger).

The next chart, Figure 22, shows the percentage of unwed mothers who are also on public assistance. Placer County indicates it has a percent of unwed women who have given birth and are on public assistance of 2.1% which is the third most percent of unwed women who gave birth and are on public assistance of all other counties in the greater Placer County region. The county with the highest percent of unwed women who have given birth and are on public assistance in the area is Amador County which shows a percent of unwed women who gave birth and are on public assistance of 14.7% ( very much bigger).

Unwed mothers who have given birth in the last 12 months are also shown broken down by age group in Figure 24. Placer County California has the percentage of unwed mothers aged 15 to 19 in the mid point range of other counties in the metro area at 2.0% of the total. Second, it has one of the largest proportions of unwed mothers aged 20 to 34 at 79.9% of the total and is ranked #2. The only larger county being Carson City and County with 89.5%. Figure 25 shows the comparative demographic rate of unwed mothers who have given birth in the last 12 months are broken down by racial group (including the Hispanic birth rate.) Placer County California has the percentage of White unwed birth rate in the mid range of other counties in the local area at 25.2% of the total. Second, it has in the middle range of other counties in the metropolitan area as measured by Asian unwed birth rate at 11.5% of the total. Third, it has one of the largest proportions of American Indian unwed birth rate at 63.5% of the total and is ranked #2. The only larger county being El Dorado County with 75.0%.

Figure 26 shows unwed mothers in poverty (based on median household income definition) who have given birth in the last 12 months. Placer County California has the percentage of unwed births and living below poverty level in the middle range of other counties in the greater region at 44.6% of the total. Second, it has one of the largest proportions of unwed births and living between 100% and 199% of poverty level at 27.4% of the total and is ranked #2. The only larger county being Nevada County with 28.7%.

For all births to unwed mothers, Figure 27 breaks down the education level of the mother by less than high school through college and post graduate attainment it has one of the largest proportions of percent of unwed mothers with less than high school education at 14% of the total and is ranked #3. Only #2 El Dorado County (20%), and #1 Yuba County (27%) are larger. Second, it has less than most other counties in the local area when sorted by percent of unwed mothers who are a high school graduate or equivalent at 29% of the total. Third, it has one of the largest proportions of percent of unwed mothers with some college or an associates degree at 48% of the total and is ranked #2. The only larger county being Carson City and County with 53%.

Placer County Marital Status Charts

The next set of demographic data looks at the marital status for Placer County households which is useful for internet research. Figure 28 compares the total number of single people in each area. Placer County shows it has a percent of people who are single for any reason of 42% which is the smallest in order of percent of people who are single for any reason of all the other counties in the metropolitan area. The county with the highest percent of people who are single for any reason in the area is Sierra County which shows a percent single of 53% (24.3% larger). Comparing percent of people who are single for any reason to the United States average of 50%, Placer County is about 17.8% smaller. Also, benchmarked against the state of California, percent of people who are single for any reason of 51%, Placer County is about 20.8% smaller.

Figure 30 compares the single people in each area broken down by never married, divorced, and widowed. Placer County California has the percentage of percent never married less than most other counties in the area at 26% of the total. Second, it has the smallest proportion of percent divorced at 11% of the total. Figure 31 shows the demographics for the number of single men adults in each area broken out by never married, divorced and widowed. Placer County California has the percentage of men who have never been married in the intermediate range of other counties in the local area at 29% of the total. Second, it has the smallest proportion of men who are divorced at 9% of the total. Figure 32 shows the number of single women adults in each area broken out by never married, divorced and widowed. Placer County California has the percentage of women who are divorced the second smallest in terms of percent of women who have never been married of all the other counties in the metro area at 13% of the total.

Figure 33 shows the Placer County demographics for the ratio of the number of single men between the age of 18 and 65, in each area, broken down by age group for the Placer County metro area. Placer County California has the largest proportion of single men 18 to 24 at 32% of the total and is ranked #1. Second, it has one of the largest proportions of single men 25 to 29 at 17% of the total and is ranked #2. The only larger county being Yuba County with 18%. Third, it has the smallest proportion of single men 50 to 60 at 15% of the total.

Figure 34 shows the Placer County population data for the ratio of the number of single women between the age of 18 and 65, in each area, broken down by age group for the Placer County metro area. Placer County California has the largest proportion of single women 18 to 24 at 29% of the total and is ranked #1. Second, it has one of the largest proportions of single women 25 to 29 at 14% of the total and is ranked #3. Only #2 Nevada County (14%), and #1 Yuba County (14%) are larger. Third, it has the second smallest in terms of percent of single women 18 to 24 of all the other counties in the metropolitan area as measured by single women 35 to 39 at 6% of the total. Also, it has the largest proportion of single women 45 to 49 at 8% of the total and is ranked #1.

Placer County Citizenship Demographics Charts

The next section of demographic information provides detailed data Placer County residents including: immigrants, citizenship, immigration, country of origin, non citizens and more. To start, Figure 35 shows a high level view of citizenship. Placer County California has the percentage of citizens born In US less than most other counties in the metro area at 89% of the total. Second, it has the largest proportion of citizens by naturalization at 7% of the total and is ranked #1. The next chart (Figure 36) shows for all citizens what the original place of birth was for people who were born in a foreign country and has the smallest proportion of birthplace in the South at 5% of the total. Second, it has less than most other counties in the local area as measured by birthplace in West at 8% of the total.

In Figure 37, the demographic percentage of Placer County residents who were not born in the United States is shown (i.e. percent foreign born.) Placer County shows it has a percent of population who was born in another country of 11.0% which is the third most percent born outside United States of all other counties in the greater Placer County region. The county with the highest percent of population who was born in another country in the area is Yuba County which shows a percent born outside United States of 12.5% (14.0% larger). Comparing percent of population who was born in another country to the United States average of 13.5%, Placer County is about 23.0% smaller. Also, benchmarked against the state of California, percent of population who was born in another country of 26.9%, Placer County is approximately half the size.

Figure 39 provides a detailed analysis of non citizens by breaking them into two age groups: Under 18 and over the age of 18. Placer County California has the largest proportion of non citizens under 18 years old at 8% of the total and is ranked #1. Second, it has the smallest proportion of non citizens over 18 years old at 92% of the total. Figure 40 provides further information for non citizen age by showing a comparison of the median age for all non citizens immigrants. it has a median age of non citizens of 40.6 which is less than most other counties in the metropolitan area. The county with the highest median age of non citizens in the area is Amador County which shows a median age of 45.1 (11.1% larger). The next diagram (Figure 41) 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. it has the largest proportion of non citizens who entered the US after 2010 at 29% of the total and is ranked #1. Second, it has one of the largest proportions of non citizens who entered the US between 2000 to 2009 at 34% of the total and is ranked #2. The only larger county being Nevada County with 38%. Third, it has the smallest proportion of non citizens who entered the US before 1990 at 15% of the total.

For all foreign born people who have gone through naturalization (the process of becoming a legal U.S. resident citizen), Figure 42 shows the year when they became fully naturalized U.S. citizens. has the percentage of people naturalized 2015 or later in the mid point range of other counties in the local area at 5% of the total. Second, it has the second smallest as measured by percent of people naturalized 2015 or later of all the other counties in the area in order of people naturalized 2005 to 2009 at 15% of the total.

Placer County Birthplace Demographic Charts

Figure 43 displays a map of the globe and shows Placer County demographic information for large regions of the world that people from this place originally came from. Placer County California has the largest proportion of from Asia at 47% of the total and is ranked #1. Second, it has the largest proportion of from Africa at 2% of the total and is ranked #1. Third, it has the smallest proportion of from the Americas at 30% of the total.

Figure 44 categorizes the location for where foreign born people originally come from based on very large continental geographic areas. Placer County California has the largest proportion of from Asia at 47% of the total and is ranked #1. Second, it has the largest proportion of from Africa at 2% of the total and is ranked #1. Third, it has the smallest proportion of from the Americas at 30% of the total.

Figure 45 is a table that breaks out all the people who were foreign born by which large geographic region where they were born. Placer County California has the largest proportion of people who were born in Eastern Europe at 8.0% of the total and is ranked #1. Second, it has the largest proportion of people who were born in Eastern Asia at 9.1% of the total and is ranked #1. Third, it has the largest proportion of people who were born in South Central Asia at 16.4% of the total and is ranked #1. Also, it has the largest proportion of people who were born in South East Asia at 18.6% of the total and is ranked #1. In addition, it has the largest proportion of people who were born in Eastern Africa at 0.7% of the total and is ranked #1. Furthermore, it has the smallest proportion of people who were born in Central America at 22.6% of the total.