According to the most recent Multnomah County Oregon demographics data available from the 2022 Census Bureau released in the American Community Survey in November of 2022, Figure 1 Multnomah County shows it has a Population 2021 of 810,011 which is at the top of all other counties in the greater Multnomah County region. Figure 3 uses the Multnomah County population data for a comparison of the population growth/population change estimates from the years 2010 to 2021 and Multnomah County Oregon depicts an increase of 74,677 (10%).
The total Multnomah County Oregon greater area population percent change for all areas for the years from 2010 to 2021 is shown in Figure 4 and for Multnomah County depicts it has a Population Change of 10.2% which is in the center range of other counties in the metro area.
Looking at the Multnomah County population density (measured as people per square mile) and providing comparisons to both the national and state average population density in Figure 5, Multnomah County Oregon depicts it has 1,879 people per square mile which is more than all other counties in the greater Multnomah County region. The next lower population density is Washington County approximately half the size with population density of 824. Figure 6 provides Multnomah County demographics for the overall median age for all people in the region and Multnomah County shows it has a Median Age of 37.8 which is the second smallest when sorted 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 Skamania County which depicts an age of 46.6 (23.3% larger).
The next demographic analysis (Figure 7) looks at large generational Multnomah 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 Multnomah County Oregon has the largest proportion of people less than 20 years of age at 14.6% of the total and is ranked #1. Second, it has the largest proportion of people between 20 and 29 years old at 18.6% of the total and is ranked #1. Third, it has the largest proportion of people between 30 and 39 years old at 15.0% of the total and is ranked #1. Also, it has the smallest proportion of people between 40 and 49 years old at 12.1% of the total. In addition, it has the smallest proportion of people between 60 and 69 years old at 8.5% of the total.
Figure 8 illustrates the overall diversity breakdown for Multnomah 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.) Multnomah County Oregon has the largest proportion of White population at 5.3% of the total and is ranked #1. Figure 9 shows the Multnomah County Oregon Hispanic (including non Hispanic whites) population household ethnicity in the region and Multnomah County depicts it has a Hispanic or Latino of 12.1% which is the third most Hispanic Population of all other counties in the greater Multnomah County region.
Multnomah County Families and Marital Status Charts
Figure 10 shows the detailed marriage characteristics broken down by %residents who are married, never married, single, divorced, and widowed. Multnomah County has the largest proportion of total percent married at 40% of the total and is ranked #1. Figure 11 compares the average household size using the average number of people in a family for Multnomah County households. Multnomah County shows it has a Family Size of 3.1 which is the second smallest when sorted by average family size of all the other counties in the metro area. The county with the highest average family size in the area is Clark County which shows an average family size of 3.3 (only about 3.9% larger).
Looking at Multnomah County households that are headed by a husband and wife as a percent of all families in Figure 12, Multnomah County depicts it has a Married-couple family of 75% which is the smallest in order of 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 Clackamas County which depicts a husband and wife family percent of 81% (7.9% 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. Multnomah County depicts it has a Birth Rate of 3.7% which is less than most other counties in the area. The county with the highest percent of women who gave birth in the area is Clackamas County which depicts a birth rate of 5.9% (59.8% larger). Figure 14 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 20 to 24 the second smallest in order of percent of births to mothers aged 15 to 19 of all the other counties in the metro area at 22% of the total. Second, it has the largest proportion of percent of births to mothers aged 30 to 34 at 28% of the total and is ranked #1.
The next set of demographic data looks at the marital status for Multnomah County households which is useful for internet research. Figure 16 compares the total number of single people in each area. Multnomah County shows it has a Total Single People of 56% which is more than all other counties in the area. Comparing percent of people who are single for any reason to the United States average of 50%, Multnomah County is 12.1% larger. Also, in comparison with the state of Oregon, percent of people who are single for any reason of 49%, Multnomah County is 13.7% larger.
Multnomah 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 percentage of non citizens who entered the US before 1990 less than most other counties in the metro area at 10% of the total.
Multnomah 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.