Moniteau County, Missouri Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 66th-largest in Missouri
The population of Moniteau County, Missouri is 15,303 as of the 2023 American Community Survey, making it the 66th-largest county in Missouri. The median household income is $65,161, the median home value is $168,300, and the median age is 38.0.
The population of Moniteau County has declined 2.1% since 2010 (15,630 → 15,294), a -0.16% annualized rate.
15,303
Population
-0.16%
Annual growth
37
People / sq mi
$65,161
Median Income
$168,300
Median Home Value
Moniteau County covers 415 sq mi of land at 36.9 people per square mile.
About Moniteau County, MO
Moniteau County is distinguished by its share of foreign-born residents, 16.6% of the population. Moniteau County is a county in Missouri with a population of 15,303.
Household earnings are middling, with a median of $65,161 — below the US median of $78,538. Only 6.0% of residents live in poverty, below the national 12.4%. Homes carry a median value of $168,300, with typical rent around $766.
Degree attainment is on the lower side for US counties: 17.2% of adults hold a bachelor’s degree, below the national 35.0%. About 7.2% of the workforce is home-based, below the national 14.0%, and the average commute runs about 29 minutes each way.
Moniteau County Population History (2010-2024)
The county of Moniteau County had a population of 15,630 in 2010 and 15,294 in 2024, a -2.1% growth over 14 years. The peak was 16,118 in 2018. Average annual growth rate: -0.15%.
15,294
Population (2024)
15,630
Population (2010)
16,118
Peak (2018)
-0.15%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 15,630 |
| 2011 | 15,711 |
| 2012 | 15,674 |
| 2013 | 15,748 |
| 2014 | 15,815 |
| 2015 | 15,878 |
| 2016 | 15,990 |
| 2017 | 16,028 |
| 2018 | 16,118 |
| 2019 | 15,816 |
| 2020 | 15,216 |
| 2021 | 15,313 |
| 2022 | 15,241 |
| 2023 | 15,245 |
| 2024 | 15,294 |
Race & Ethnicity
| White | 91.1% |
| Black or African American | 2.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.3% |
| Two or More Races | 0.1% |
Age & Sex
38.0
Median Age
48.3%
Female
51.7%
Male
16.3%
Age 65+
Age Distribution
Children (under 15): 20.6% · Seniors (65+): 16.3%
Income & Poverty
| Median household income | $65,161$-3,759 vs state |
| Mean household income | $78,901 |
| Per-capita income | $29,379 |
| Poverty rate | 6.0%-2.4% vs state |
| Unemployment rate | 1.5% |
| Employment-to-population | 57.2% |
Top Industries by Employment
The largest employment sector in Moniteau County is professional & business services, accounting for 20.1% of workers.
How residents commute
0.1%
Drive alone
2.0%
Carpool
76.3%
Public transit
7.2%
Work from home
29.0 min
Avg commute
Housing
$168,300$-47,300 vs state
Median home value
$766
Median rent
77.8%
Homeownership rate
6,177
Total housing units
93.5%
Occupied
6.5%
Vacant
22.2%
Renter-occupied
Social & access
83.9%
With health insurance
89.2%
With broadband internet
16.6%
Foreign-born
7.8%
Veterans (18+)
13.0%
With a disability
89.7%
Speak language other than English at home
Education
86.5%
High School+
17.2%
Bachelor's+
Largest cities in Missouri
Other counties in Missouri
Part of Missouri
Metro areas in Missouri
County rankings
Frequently Asked Questions
Moniteau County, Missouri has a population of 15,303 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 66th-largest county in Missouri. Population density is 37 people per square mile.
The population of Moniteau County has declined 2.1% since 2010 (15,630 → 15,294), a -0.16% annualized rate.
The median household income in Moniteau County, Missouri is $65,161, with mean (average) household income of $78,901 and per-capita income of $29,379. 6.0% of residents live below the federal poverty level.
In Moniteau County, the largest racial and ethnic groups are White (91.1%), Black or African American (2.4%), Hispanic or Latino (1.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Moniteau County, Missouri is 38.0 years. Residents are 48.3% female and 51.7% male.
The median home value in Moniteau County is $168,300 and median monthly rent is $766. 77.8% of occupied housing units are owner-occupied. The county has 6,177 total housing units, 6.5% of which are vacant.
The largest employment sector in Moniteau County, Missouri is professional, scientific, and management services, employing 20.1% of workers. The unemployment rate is 1.5%.
Kansas City is among the largest cities associated with Moniteau County, Missouri, with a population of 508,233.
Moniteau County, MO Climate
Moniteau County, MO has an average annual temperature of 12.6°C (55°F) and receives about 997 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
12.6°C
Avg Temp
997
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -2° / 28° | 33 mm |
| February | 1° / 34° | 42 mm |
| March | 7° / 45° | 80 mm |
| April | 13° / 55° | 94 mm |
| May | 18° / 64° | 132 mm |
| June | 23° / 73° | 111 mm |
| July | 26° / 78° | 87 mm |
| August | 25° / 76° | 88 mm |
| September | 20° / 68° | 107 mm |
| October | 14° / 57° | 88 mm |
| November | 7° / 44° | 75 mm |
| December | 1° / 33° | 60 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 Moniteau County, MO
The most comfortable months to visit Moniteau County, 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 Moniteau County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.