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CITY · 2000 CENSUS

Affton

Missouri · 20,535 residents · 4.57 sq mi
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The short version

Affton has roughly average household income, with a median household income of $43,327. Population has held roughly steady since 1990. Median home value is $97,000. Poverty is rare here, at 3.6% of residents.

At a glance
Average income
near the US median
US median: $42,589
Older
median age 39.9
US median: 35.2
Average education
21% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

20,535
−3%since 1990
from 21,105 in 1990
1990 – 2024
4,493 / sq mi
−3%since 1990
from 4,618 / sq mi in 1990
US average: 242
39.9
+4%since 1990
from 38.4 in 1990
US average: 35.2
Population, 19902024
19K20K20K21K22K1990201020202024Affton
202419K
1990201020202024
Section 02

Income & economy

$43,327
Unchangedinflation adjusted, since 1990
from $32,860 in 1990
US average: $42,589
1990 – 2024
$22,059
+43%since 1990
from $15,416 in 1990
US average: $21,522
3.6%
+0.2 ptssince 1990
from 3.4% in 1990
US average: 12.4%
Section 03

Housing

$97,000
−1%inflation adjusted, since 1990
from $74,400 in 1990
US average: $120,530
1990 – 2024
$518
−9%inflation adjusted, since 1990
from $433 in 1990
US average: $602
80.2%
−0.8 ptssince 1990
from 80.9% in 1990
19.8% rent
2.2
−1%since 1990
from 2.3 in 1990
1990 – 2024
RELATED:See current rent listings in Affton on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic99.2%(20,939)
Black0.1%(28)
Hispanic / Latino0.6%(119)
Asian0.3%(70)
Diversity Score3.3%(702)
2000
White, non-Hispanic95.9%(19,686)
Black0.5%(93)
Hispanic / Latino1%(207)
Asian1.3%(265)
Diversity Score6.8%(1,405)
7
+106%since 1990
from 3 in 1990
1990 – 2024
Section 05

Education

21.3%
+3.1 ptssince 1990
from 18.2% in 1990
US average: 24.4%
High school or higher
83.8%
+8.3 ptssince 1990
from 75.5% in 1990
US average: 80.3%
6.5%
+1.4 ptssince 1990
from 5.1% in 1990
US average: 8.8%
Section 06

Commute & transportation

13.8 min
−34%since 1990
from 21.0 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in Affton, Missouri?

Affton, Missouri has about 20,535 residents according to the 2000 Census.

What is the median household income in Affton, Missouri?

The typical household in Affton, Missouri earns about $43,327 a year. Half of households make more than that, and half make less.

Is Affton, Missouri expensive?

In Affton, Missouri, the median home is worth about $97,000, and the typical rent is about $518 a month.

How educated are people in Affton, Missouri?

About 21.3% of adults age 25 and over in Affton, Missouri hold a bachelor's degree or higher.

What is the poverty rate in Affton, Missouri?

About 3.6% of people in Affton, Missouri live below the federal poverty line.

Has Affton, Missouri grown since 1990?

Yes, Affton, Missouri has shrunk since 1990. The population has lost about 570 residents, a change of about -3 percent over that period.

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

How we source and harmonize this data →

Affton, Missouri (2000): demographics, income & housing data · CensusEasy