Grundy County, Missouri Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 87th-largest in Missouri
The population of Grundy County, Missouri is 9,822 as of the 2023 American Community Survey, making it the 87th-largest county in Missouri. The median household income is $53,839, the median home value is $107,000, and the median age is 39.7.
The population of Grundy County has declined 4.8% since 2010 (10,254 → 9,766), a -0.35% annualized rate.
9,822
Population
-0.35%
Annual growth
23
People / sq mi
$53,839
Median Income
$107,000
Median Home Value
Grundy County covers 435 sq mi of land at 22.6 people per square mile.
About Grundy County, MO
Housing cost is the defining feature of Grundy County: the median home is valued at $107,000. Grundy County is a county in Missouri with a population of 9,822.
Incomes run on the lower side: a median household income of $53,839, below the US median of $78,538. Poverty runs at 11.1%, below the national 12.4%. Housing is relatively affordable, with a median home value of $107,000, with typical rent around $679.
Fewer adults hold degrees here than in most comparable places — 15.9%, below the national 35.0%. Around 6.3% of workers work from home, below the national 14.0%, and the average commute runs about 17 minutes each way.
Grundy County Population History (2010-2024)
The county of Grundy County had a population of 10,254 in 2010 and 9,766 in 2024, a -4.8% growth over 14 years. The peak was 10,346 in 2013. Average annual growth rate: -0.34%.
9,766
Population (2024)
10,254
Population (2010)
10,346
Peak (2013)
-0.34%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 10,254 |
| 2011 | 10,254 |
| 2012 | 10,333 |
| 2013 | 10,346 |
| 2014 | 10,183 |
| 2015 | 10,033 |
| 2016 | 10,107 |
| 2017 | 9,990 |
| 2018 | 9,949 |
| 2019 | 9,780 |
| 2020 | 9,757 |
| 2021 | 9,762 |
| 2022 | 9,828 |
| 2023 | 9,807 |
| 2024 | 9,766 |
Race & Ethnicity
| White | 93.6% |
| Black or African American | 0.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Age & Sex
39.7
Median Age
51.0%
Female
49.0%
Male
21.8%
Age 65+
Age Distribution
Children (under 15): 21.6% · Seniors (65+): 21.8%
Income & Poverty
| Median household income | $53,839$-15,081 vs state |
| Mean household income | $76,823 |
| Per-capita income | $30,705 |
| Poverty rate | 11.1%+2.7% vs state |
| Unemployment rate | 1.5% |
| Employment-to-population | 52.5% |
Top Industries by Employment
The largest employment sector in Grundy County is professional & business services, accounting for 21.6% of workers.
How residents commute
0.5%
Drive alone
4.6%
Carpool
78.8%
Public transit
6.3%
Work from home
17.0 min
Avg commute
Housing
$107,000$-108,600 vs state
Median home value
$679
Median rent
69.3%
Homeownership rate
4,851
Total housing units
78.9%
Occupied
21.1%
Vacant
30.7%
Renter-occupied
Social & access
83.0%
With health insurance
84.4%
With broadband internet
22.1%
Foreign-born
7.2%
Veterans (18+)
13.1%
With a disability
94.8%
Speak language other than English at home
Education
85.4%
High School+
15.9%
Bachelor's+
Largest cities in Missouri
Other counties in Missouri
Part of Missouri
Metro areas in Missouri
County rankings
Frequently Asked Questions
Grundy County, Missouri has a population of 9,822 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 87th-largest county in Missouri. Population density is 23 people per square mile.
The population of Grundy County has declined 4.8% since 2010 (10,254 → 9,766), a -0.35% annualized rate.
The median household income in Grundy County, Missouri is $53,839, with mean (average) household income of $76,823 and per-capita income of $30,705. 11.1% of residents live below the federal poverty level.
In Grundy County, the largest racial and ethnic groups are White (93.6%), Hispanic or Latino (1.1%), Black or African American (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Grundy County, Missouri is 39.7 years. Residents are 51.0% female and 49.0% male.
The median home value in Grundy County is $107,000 and median monthly rent is $679. 69.3% of occupied housing units are owner-occupied. The county has 4,851 total housing units, 21.1% of which are vacant.
The largest employment sector in Grundy County, Missouri is professional, scientific, and management services, employing 21.6% of workers. The unemployment rate is 1.5%.
Kansas City is among the largest cities associated with Grundy County, Missouri, with a population of 508,233.
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Statewide data for Missouri
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.