What is the largest city in Boone County, MO?

Columbia is the largest city or town in Boone County, with about 128,548 residents.

How many ZIP codes are in Boone County?

Boone County includes 12 ZIP Code Tabulation Areas, including 65010, 65039, 65201, 65202, 65203.

What is the population of Boone County, MO?

About 188,043 people live in Boone County, based on American Community Survey 5-year estimates.

What counties border Boone County?

Boone County borders Cole County, Callaway County, Audrain County, Randolph County, Cooper County, Moniteau County, Howard County.

Boone County, MO: Cities, ZIP Codes & Local Data

Population

188,043

Land area

686sq mi

People per sq mi

274

ZIP codes

12

Boone County at a glance

Boone County is about 3 times as dense as Missouri as a whole.
It is the 8th most populous of 115 counties in Missouri.
The median household income is $72,758, close to the Missouri median.
A typical owner-occupied home is valued at $272,800 (18% above Missouri) and median rent is $1,088 a month.
The biggest population centers are Columbia (128,548), Ashland (4,914) and Centralia (4,690).

Local data for Boone County, MO

Counts from official public data

Housing and community stats

Boone County, MO, American Community Survey 2020-2024

Full profile

Median household income

$72,758

Poverty rate

16.6%

Median home value

$272,800

Prices +3.8% in a year

Median rent

$1,088/mo

Homeownership

57.7%

Bachelor's or higher

51.5%

Median age

32.7

Average commute

18.7 min

Largest reported origins and ancestries: German Americans (44,036), Irish Americans (23,247), Italian Americans (5,731).

Home values and rents Income, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

2.7%

Sep 2026, -0.1 pts in a year

Average annual pay

$62,197

100,066 jobs, 2025

Income per person

$62,123

BEA, 2024

Federal spending

$1.1B

FY 2026, $5,980 per person

PPP loans

$346M

5,251 loans, 46,243 jobs reported

Campaign donations

$1.3M

Itemized, 2026 cycle

Economy Federal spending PPP loans

How people get to work

Boone County, MO, workers 16 and older. American Community Survey 5-year estimates

Drove alone74.9%
Carpooled8.7%
Public transit0.8%
Walked4.0%
Bicycle0.6%
Taxi, ride-hailing, motorcycle or other1.2%
Worked from home9.8%

Average one-way commute: 18.7 minutes for people who do not work from home.

Environment and hazard risk

Boone County, MO, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: heat wave

Storm events since 1996

704

Most often hail

Flood insurance policies

129

0.2% of homes, county

July high / Jan low

89° / 23°F

44.8 inches of rain a year

Hazards, floods and storm history Check a flood zone 40 historic places

Health statistics

Share of adults in Boone County, MO, CDC PLACES estimates

All 40 measures

Obesity

29.8%

U.S. 33.3% -3.5 pts

Diabetes

9.5%

U.S. 12.1% -2.6 pts

Smoking

12.2%

U.S. 12.8% -0.6 pts

Uninsured (18-64)

7.5%

U.S. 11.1% -3.6 pts

Cities, towns and ZIP codes in Boone County

Population shown

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Frequently asked questions

What is the largest city in Boone County, MO?: Columbia is the largest city or town in Boone County, with about 128,548 residents.
How many ZIP codes are in Boone County?: Boone County includes 12 ZIP Code Tabulation Areas, including 65010, 65039, 65201, 65202, 65203.
What is the population of Boone County, MO?: About 188,043 people live in Boone County, based on American Community Survey 5-year estimates.
What counties border Boone County?: Boone County borders Cole County, Callaway County, Audrain County, Randolph County, Cooper County, Moniteau County, Howard County.