Eureka, Missouri Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Eureka, Missouri is 12,371 as of the 2023 American Community Survey, making it the 74th-largest city in Missouri. The median household income is $108,947, the median home value is $352,200, and the median age is 37.5.
The population has grown 30.1% since 2010 (10,205 → 13,277).
12,371
Population
1109
People / sq mi
$108,947
Median Income
$352,200
Median Home Value
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Eureka covers 11.2 sq mi of land at 1109 people per square mile.
About Eureka, MO
What distinguishes Eureka is density: among the most sparsely settled of US cities, around 1,109 people per square mile. Eureka is a city in Missouri with a population of 12,371.
Households take in a median $108,947, comfortably above the US median of $78,538. Poverty is relatively low for US cities at 3.4%, below the national 12.4%. Homes carry a median value of $352,200, with typical rent around $1,240.
College attainment is above the local norm at 50.9%, above the national 35.0%. A solid 17.7% of workers are based at home, above the national 14.0%, and the average commute runs about 27 minutes each way.
Eureka city Population History (2010-2024)
The city of Eureka city had a population of 10,205 in 2010 and 13,277 in 2024, a 30.1% growth over 14 years. The peak was 13,277 in 2024. Average annual growth rate: 1.92%.
13,277
Population (2024)
10,205
Population (2010)
13,277
Peak (2024)
1.92%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 10,205 |
| 2011 | 10,277 |
| 2012 | 10,382 |
| 2013 | 10,447 |
| 2014 | 10,523 |
| 2015 | 10,574 |
| 2016 | 10,529 |
| 2017 | 10,553 |
| 2018 | 10,762 |
| 2019 | 10,946 |
| 2020 | 11,776 |
| 2021 | 12,198 |
| 2022 | 12,739 |
| 2023 | 13,136 |
| 2024 | 13,277 |
Race & Ethnicity
| White | 87.5% |
| Black or African American | 0.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.5% |
| Two or More Races | 0.0% |
Economy & Income
$108,947
Median Household Income
$48,832
Per Capita Income
3.4%
Poverty Rate
2.0%
Unemployment Rate
Housing
$352,200
Median Home Value
$1,240
Median Rent
81.1%
Owner-Occupied
Education
96.8%
High School+
50.9%
Bachelor's+
Commute
0.0%
Drive Alone
76.4%
Public Transit
17.7%
Work From Home
27.2 min
Avg Commute
Community Profile
26.4%
Foreign Born
94.5%
Non-English at Home
5.4%
Veterans
6.9%
With Disability
98.0%
Health Insurance
95.2%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 22.7% |
| Finance, Insurance & Real Estate | 14.1% |
| Manufacturing | 9.4% |
| Information | 8.7% |
| Retail Trade | 8.2% |
| Education, Health Care & Social Services | 6.4% |
| Construction | 5.1% |
| Transportation & Warehousing | 5.0% |
| Arts, Entertainment & Food Services | 4.2% |
| Public Administration | 3.1% |
| Agriculture & Mining | 0.4% |
Largest cities in Missouri
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City rankings
Frequently Asked Questions
Eureka, Missouri has a population of 12,371 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 74th-largest city in Missouri.
The median household income in Eureka, Missouri is $108,947, with 3.4% of residents living below the federal poverty level.
The median home value in Eureka, Missouri is $352,200, with median monthly rent at $1,240 and a homeownership rate of 81.1%.
The median age in Eureka, Missouri is 37.5 years. The population is 52.8% male and 47.2% female.
The population has grown 30.1% since 2010 (10,205 → 13,277).
Eureka city, MO Climate
Eureka city, MO has an average annual temperature of 12.8°C (55°F) and receives about 979 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
12.8°C
Avg Temp
979
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -1° / 29° | 51 mm |
| February | 2° / 35° | 55 mm |
| March | 7° / 45° | 91 mm |
| April | 13° / 55° | 93 mm |
| May | 18° / 64° | 108 mm |
| June | 23° / 73° | 88 mm |
| July | 25° / 78° | 90 mm |
| August | 24° / 76° | 82 mm |
| September | 20° / 69° | 83 mm |
| October | 14° / 57° | 74 mm |
| November | 7° / 45° | 88 mm |
| December | 1° / 34° | 76 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Eureka city, MO
The most comfortable months to visit Eureka city, MO are typically September, June and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 32°C high). The coldest is January (near -7°C low). May is usually the wettest month.
Where to stay near Eureka
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Population, race, income, age, and trends across Missouri
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.