South Prairie, WA demographics:
population, income, and more

Total population
309
-16.7% year-over-year change
Median household income
$117,250/yr
3.8% year-over-year change
Housing units
121
-9.0% year-over-year change

South Prairie population

How many people live in South Prairie

South Prairie is home to 309 residents, according to the most recent Census data. Gender-wise, 56.3% of South Prairie locals are male, and 43.7% are female.

Total population
309
-16.7% year-over-year change
Gender ratio
Male
56.3%
174
Female
43.7%
135
Value Percent YoY change
Male 174 56.3% -14.7%
Female 135 43.7% -19.2%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in South Prairie is 38, with the population distributed as follows: about 19.4% are children under 15, then 7.8% are in the 15 to 24 age group. Adults between 25 and 44 make up 26.9% of the population, while another 31.4% fall into the 45 to 64 bracket. Finally, around 14.6% are 65 or older.

Median age
38.5
Age breakdown
Under 15
19.4%
15 to 24
7.8%
25 to 44
26.9%
45 to 64
31.4%
Over 65
14.6%
Value Percent YoY change
Under 15 60 19.4% -30.2%
15 to 24 24 7.8% -45.5%
25 to 44 83 26.9% -21.7%
45 to 64 97 31.4% 4.3%
Over 65 45 14.6% 7.1%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In South Prairie, 93.2% of the population are US-born citizens, while 6.8% have gained naturalized citizenship. There’s also a share of 10% that includes residents with two or more races.

Citizenship
U.S.-born citizens
93.2%
Non-U.S.-born citizens
6.8%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 288 93.2% -15.0%
Non-U.S.-born citizens 21 6.8% -4.5%
Racial breakdown
White
80.9%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
2.6%
Native Hawaiian and other Pacific Islander
1.6%
Two or more races
10%
Other
4.8%
Value Percent
White 250 80.9%
Asian 8 2.6%
Native Hawaiian and other Pacific Islander 5 1.6%
Two or more races 31 10%
Other 15 4.8%

Households in South Prairie

A peek inside South Prairie households

South Prairie has 113 households, with an average of 3 members in each. Of these, 85% are families, while the remaining 15% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
113
-9.6% year-over-year change
Average people per household
3
Non-family households
17
Family households
96
Value Percent YoY change
Non-family households 17 15% -19.1%
Family households 96 85% -7.7%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in South Prairie

The housing landscape of South Prairie

South Prairie's housing consists of 121 units, with 86.8% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 11.6% of the housing landscape.

Housing units
121
-9.0% year-over-year change
Housing types
Value Percent
1 unit, detached 105 86.8%
Mobile home 14 11.6%
Boat, RV, van, etc. 2 1.6%
Homes built since 2020
5
% year-over-year change

The age of buildings in South Prairie

In South Prairie, the median construction year is 1974. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 44 36.4% 4.8%
Built between 1950 and 1959 6 5% -14.3%
Built between 1960 and 1969 8 6.6% 100.0%
Built between 1970 and 1979 6 5% -25.0%
Built between 1980 and 1989 24 19.8% 41.2%
Built between 1990 and 1999 13 10.7% -45.8%
Built between 2000 and 2009 15 12.4% -31.8%
Built in 2020 or later 5 4.1% N/A
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

South Prairie occupancy rates

Out of the 113 occupied housing units in South Prairie, 92.9% are owner-occupied, while 7.1% are lived in by tenants. Meanwhile, 6.6% of all homes on the local market sit vacant.

Occupied housing units
113
-9.6% year-over-year change
Occupancy breakdown
Renter occupied
8
Owner occupied
105
Value Percent YoY
change
Renter occupied 8 7.1% 14.3%
Owner occupied 105 92.9% -11.0%
Unoccupied housing units
6.6%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

South Prairie housing costs

Median housing costs per month
$1,900/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.

Education in South Prairie

South Prairie education at a glance

About 33% of the population in South Prairie went to high school, while 35.2% pursued college studies. Another 10.3% earned an associate degree and 14.6% hold a bachelor’s. Meanwhile, 3.4% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 8 3.4% -33.3%
High school diploma 77 33% -26.0%
College diploma 82 35.2% 7.9%
Associate degree 24 10.3% 4.3%
Bachelor's degree 34 14.6% 0.0%
Graduate degree 8 3.4% 14.3%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in South Prairie

How much people earn in South Prairie

The average annual household income in South Prairie was $123,146 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +0.3% change from the previous year. At the same time, the median income stood at $117,250, reflecting a +3.8% shift over the same period.

Average household income in South Prairie
$123,146/year
0.3% year-over-year change
Median household income in South Prairie
$117,250/year
3.8% year-over-year change

South Prairie income by age

In South Prairie, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $117,000. Those with someone between 45 and 64 in charge, often well established professionally, earn $131,875 overall. Overall, 97% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $117,000 -3.5%
45 - 64 $131,875 2.9%
Over 65 $85,375 7.3%
Above poverty level
296
Below poverty level
9
Value Percent YoY
change
Above poverty level 296 97% -17.1%
Below poverty level 9 3% -10.0%

Employment in South Prairie

Workforce and job types in South Prairie

The job market in South Prairie is powered by 145 working residents, spread across a range of industries and roles. 62.1% of the working population are employed in professional or administrative positions, while 37.9% are in hands-on or service-based jobs. Also, 13.1% run their own businesses, 65.5% are employed by private companies, and 21.4% work in the public sector.

Workforce demographics

Working population
145
-17.6% year-over-year change
White collar
90
Blue collar
55
Value Percent YoY change
White collar 90 62.1% -26.2%
Blue collar 55 37.9% 1.9%
Employer type
Self employees
13.1%
Private companies
65.5%
Governmental workers
21.4%
Not for profit companies
0%
Value Percent YoY change
Self employees 19 13.1% 0.0%
Private companies 95 65.5% -24.0%
Governmental workers 31 21.4% 19.2%
Unemployment rate
8.2%
30.0% year-over-year change

Available workforce

The unemployment rate in South Prairie stands at 8.2%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in South Prairie

How people get around in South Prairie

In South Prairie, the average commute time is 37 minutes.

Commute time
37 min
Means of transportation
Value Percent YoY change
Car 137 96.5% -17.5%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in South Prairie by zipcode?

Zipcode Population Number of households Median income Average income
98385 457 162 $152,500 $312,015

Explore more communities

FAQs about South Prairie demographics 

What is the total population of South Prairie?

South Prairie has a total population of 309 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -16.7% compared to a year ago.

What is the gender ratio in South Prairie?

The gender ratio in South Prairie is as follows:
  • 56.3% males (174 residents)
  • 43.7% females (135 residents)

What is the median age in South Prairie?

The median age in South Prairie is 38.5.

What is the age distribution of the population in South Prairie?

The age distribution in South Prairie is as follows:
  • Under 15: 19.4% (60 residents)
  • Ages 15-24: 7.8% (24 residents)
  • Ages 25-44: 26.9% (83 residents)
  • Ages 45-64: 31.4% (97 residents)
  • Over 65: 14.6% (45 residents)

What is the racial and ethnic makeup of South Prairie?

The racial and ethnic makeup of South Prairie is as follows:
  • White: 80.9% (250 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 2.6% (8 residents)
  • Native Hawaiian and Other Pacific Islander: 1.6% (5 residents)
  • Two or More Races: 10% (31 residents)
  • Other: 4.8% (15 residents)

What percentage of the population in South Prairie are U.S.-born citizens?

U.S.-born citizens represent 93.2% of the population in South Prairie.

How many housing units are there in South Prairie?

There are 121 housing units in South Prairie, reflecting a -9.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in South Prairie and what is the average household size?

South Prairie has a total of 113 households, with an average of 3 people in each.

What is the median household income in South Prairie?

South Prairie has a median household income of $117,250, representing a +3.8% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for South Prairie?

The employment rate is 91.8% in South Prairie, with a workforce of 145 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 62.1% (90 residents)
  • Blue-collar workers: 37.9% (55 residents)

Places of employment:
  • Self-employed: 13.1% (19 residents)
  • Private companies: 65.5% (95 residents)
  • Governmental workers: 21.4% (31 residents)
  • Not-for-profit companies: 0% (0 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025