CensusEasy
COUNTY

Jefferson County

Missouri · 233,132 residents (2025 est.) · 656.261 sq mi
Time machine
COMPARE TO
Compare
The short version

Jefferson County has roughly average household income, with a median household income of $82,851. Population has grown 16% since 2000. Median home value has more than doubled since 2000, reaching $237,200. It ranks in the top 5% of US counties for household income.

At a glance
Average income
near the US median
US median: $82,259
Mid-age
median age 40.3
US median: 38.9
Less educated
25% hold a bachelor's degree
US average: 36%
Less affordable
home values up 40%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

229,458
+16%since 2000
from 198,099 in 2000
1990 – 2025
350 / sq mi
+7%since 2009
from 328 / sq mi in 2009
US average: 281
40.3
+15%since 2000
from 34.9 in 2000
US average: 38.9

PEP 2025 EST:233,132 residents (Census Bureau Vintage 2025, released March 2026)

Population, 19902024
166K183K200K218K235K1990201020202024Jefferson County
2024229K
1990201020202024
Age distribution, 2024
Under 55.5%(12,635)
US avg: 5.6%
5 to 96.2%(14,309)
US avg: 6%
10 to 146.6%(15,075)
US avg: 6.4%
15 to 196.1%(14,095)
US avg: 6.6%
20 to 245.5%(12,532)
US avg: 6.5%
25 to 3412.4%(28,494)
US avg: 13.7%
35 to 4413.7%(31,476)
US avg: 13.2%
45 to 5412.8%(29,293)
US avg: 12.2%
55 to 6414.5%(33,288)
US avg: 12.7%
65 to 7410.7%(24,496)
US avg: 10.2%
75 to 844.5%(10,236)
US avg: 5.1%
85 and over1.5%(3,529)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$82,851
−2%inflation adjusted, since 2000
from $46,338 in 2000
US average: $82,259
1990 – 2024
$39,160
+101%since 2000
from $19,435 in 2000
US average: $44,673
Households earning $100K+
54.7%
+20.7 ptssince 2009
from 34.0% in 2009
US average: 53.3%
9.0%
+2.3 ptssince 2000
from 6.8% in 2000
US average: 12.5%
0.395
+4%since 2010
from 0.378 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade12.4%
US avg: 9.9%
Information11.6%
US avg: 10.8%
Wholesale trade10.9%
US avg: 6.9%
Other services6.8%
US avg: 6.7%
Public administration5.3%
US avg: 4.8%
Finance & insurance5.3%
US avg: 5.9%
Professional, scientific, technical4.2%
US avg: 5.1%
Transportation & warehousing2.5%
US avg: 2.2%
Arts, entertainment, food1.6%
US avg: 1.9%
Education & health services1.1%
US avg: 0.9%
Agriculture, forestry, fishing0.7%
US avg: 1.6%
Construction0.5%
US avg: 1.2%
Manufacturing0.2%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

$237,200
+40%inflation adjusted, since 2000
from $93,300 in 2000
US average: $376,019
1990 – 2024
$979
+7%inflation adjusted, since 2000
from $502 in 2000
US average: $1,442
82.2%
−1.2 ptssince 2000
from 83.4% in 2000
17.8% rent
6.0%
−1.2 ptssince 2009
from 7.2% in 2009
US average: 10.0%
17.2%
−4.9 ptssince 2009
from 22.1% in 2009
US average: 22.9%
35.6%
−4.7 ptssince 2009
from 40.3% in 2009
US average: 47.4%
2.9
+8%since 2009
from 2.7 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
45
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Jefferson County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic96.8%(191,753)
Black0.7%(1,340)
Hispanic / Latino1%(2,002)
Asian0.3%(691)
Other0%
2024
White, non-Hispanic88.5%(202,967)
Black1%(2,315)
Hispanic / Latino2.6%(6,066)
Asian1%(2,305)
Other6.9%(15,805)
26
+136%since 2009
from 11 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
20
−15%since 2020
from 24 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican1.4%(3,232)
Puerto Rican0.3%(768)
Spaniard0.1%(244)
Salvadoran0.1%(226)
Guatemalan0.1%(203)
Peruvian0%(113)
Nicaraguan0%(104)
Cuban0%(83)
Dominican0%(76)
+ 6 more hispanic origin groups with data
Argentine0%(51)
Honduran0%(41)
Chilean0%(29)
Bolivian0%(27)
Colombian0%(21)
Asian origin
Chinese0.3%(618)
Filipino0.2%(508)
Korean0.2%(413)
Asian Indian0.1%(156)
Nepalese0.1%(155)
Bangladeshi0.1%(147)
Laotian0%(78)
Thai0%(40)
Cambodian0%(36)
Taiwanese0%(24)
Japanese0%(16)
+ 2 more asian origin groups with data
Kazakh0%(4)
Pacific Islander origin
Samoan0%(62)
Tongan0%(33)
Chamorro0%(12)
Ancestry
German29.2%(67,083)
Irish14.6%(33,468)
English11.3%(25,983)
American6.2%(14,297)
Italian5.3%(12,077)
French4.4%(10,190)
Polish2.1%(4,776)
Scottish1.6%(3,706)
Scotch-Irish1%(2,247)
Dutch0.8%(1,739)
Swedish0.6%(1,455)
Czech0.5%(1,150)
+ 39 more ancestry groups with data
Norwegian0.4%(1,026)
Hungarian0.4%(1,012)
Welsh0.4%(911)
Croatian0.3%(696)
British0.3%(689)
Swiss0.3%(623)
Arab0.3%(614)
Greek0.2%(527)
Danish0.2%(416)
Russian0.2%(411)
Austrian0.2%(406)
Canadian0.1%(304)
Ukrainian0.1%(278)
Lithuanian0.1%(261)
Romanian0.1%(202)
Lebanese0.1%(191)
Slovak0.1%(168)
Portuguese0.1%(157)
Iraqi0.1%(145)
Slovene0.1%(142)
Serbian0.1%(139)
Belgian0.1%(129)
Turkish0.1%(129)
Moroccan0%(113)
Finnish0%(81)
Kenyan0%(69)
Ethiopian0%(43)
Armenian0%(28)
Latvian0%(27)
Syrian0%(25)
Egyptian0%(21)
Nigerian0%(18)
Brazilian0%(17)
Jamaican0%(12)
RANKED:Largest German population · Largest Irish population · Largest English population · Largest American population · Largest Italian population
Section 05

Education

24.7%
+12.6 ptssince 2000
from 12.1% in 2000
US average: 35.6%
High school or higher
92.0%
+12.6 ptssince 2000
from 79.4% in 2000
US average: 89.6%
8.0%
+4.3 ptssince 2000
from 3.7% in 2000
US average: 14.0%
Section 06

Commute & transportation

30.6 min
+34%since 2000
from 22.8 min in 2000
US average: 26.5
79.5%
−4.5 ptssince 2009
from 84.0% in 2009
US average: 68.9%
7.2%
−4.2 ptssince 2009
from 11.4% in 2009
US average: 8.5%
0.1%
Unchangedsince 2009
from 0.2% in 2009
US average: 3.2%
11.5%
+9.0 ptssince 2009
from 2.5% in 2009
US average: 15.0%
0.6%
−0.4 ptssince 2009
from 1.0% in 2009
US average: 2.4%
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
3.7%
−0.2 ptssince 2009
from 3.9% in 2009
US average: 8.3%
Section 07

Work & employment

3.2%
−5.0 ptssince 2011
from 8.2% in 2011
US average: 5.2%
66.0%
−3.1 ptssince 2011
from 69.1% in 2011
US average: 63.5%
10.1%
+0.7 ptssince 2009
from 9.4% in 2009
US average: 13.1%
36.4%
−22.4 ptssince 2009
from 58.8% in 2009
US average: 42.5%
Section 08

People & community

50.0%
+0.3 ptssince 2009
from 49.7% in 2009
50.0%
−0.3 ptssince 2009
from 50.3% in 2009
2.3%
+0.4 ptssince 2009
from 1.9% in 2009
US average: 14.1%
7.3%
−41.9 ptssince 2009
from 49.2% in 2009
US average: 6.2%
13.3%
−0.2 ptssince 2012
from 13.5% in 2012
US average: 13.3%
6.6%
−82.5 ptssince 2013
from 89.1% in 2013
US average: 8.4%
91.7%
+12.0 ptssince 2017
from 79.7% in 2017
US average: 91.0%
96.7%
−0.7 ptssince 2016
from 97.4% in 2016
US average: 77.7%
1.1%
+0.2 ptssince 2016
from 0.9% in 2016
US average: 13.6%
Marital status
Men 15+
Never married29.7%(27,659)
Married57%(53,079)
Widowed2.6%(2,391)
Divorced10.8%(10,017)
Women 15+
Never married24.9%(23,490)
Married53.9%(50,802)
Widowed9.1%(8,539)
Divorced12.2%(11,462)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

Places similar to Jefferson County

Head to head

Compare Jefferson County to nearby counties

Frequently asked

How many people live in Jefferson County, Missouri?

Jefferson County, Missouri has about 229,458 residents according to the 2024 American Community Survey.

What is the median household income in Jefferson County, Missouri?

The typical household in Jefferson County, Missouri earns about $82,851 a year. Half of households make more than that, and half make less.

Is Jefferson County, Missouri expensive?

In Jefferson County, Missouri, the median home is worth about $237,200, and the typical rent is about $979 a month.

How educated are people in Jefferson County, Missouri?

About 24.7% of adults age 25 and over in Jefferson County, Missouri hold a bachelor's degree or higher.

What is the poverty rate in Jefferson County, Missouri?

About 9.0% of people in Jefferson County, Missouri live below the federal poverty line.

Has Jefferson County, Missouri grown since 1990?

Yes, Jefferson County, Missouri has grown since 1990. The population has added about 58,078 residents, a change of about 34 percent over that period.

Keep going

Explore from here

DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →