Affton vs Spanish Lake

A side-by-side comparison of Affton and Spanish Lake: population, income, housing, and more.

Affton and Spanish Lake are places in Missouri. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Affton has the higher population (20,035 vs 18,183 in Spanish Lake). Affton has the higher median household income ($77,337 vs $51,125 in Spanish Lake). Affton has the higher median home value ($200,300 vs $121,300 in Spanish Lake).

Population, income & housing

	Affton	Spanish Lake
Population	20,035	18,183
Median age	41.7 yrs	34.5 yrs
Median household income	$77,337	$51,125
Median home value	$200,300	$121,300
Median gross rent	$978	$1,073
Housing units	9,278	8,876
Homeownership rate	80.5%	49.0%
Bachelor's degree or higher	35.0%	13.2%
Unemployment rate	2.5%	6.8%

Trends (ACS 5-year, 2019–2023)

	Affton	Spanish Lake
Population	20,148 → 20,035 (-0.6%)	17,485 → 18,183 (+4.0%)
Median household income	$60,969 → $77,337 (+26.8%)	$37,153 → $51,125 (+37.6%)
Median home value	$149,300 → $200,300 (+34.2%)	$98,800 → $121,300 (+22.8%)
Median gross rent	$885 → $978 (+10.5%)	$815 → $1,073 (+31.7%)

Affton

Population

20,14820,035

Median household income

$60,969$77,337

Median home value

$149,300$200,300

Median gross rent

$885$978

Spanish Lake

Population

17,48518,183

Median household income

$37,153$51,125

Median home value

$98,800$121,300

Median gross rent

$815$1,073

Age & race/ethnicity

Age distribution (share)

	Affton	Spanish Lake
Under 5	6.3%	7.1%
5 to 17	12.4%	18.1%
18 to 24	7.2%	10.1%
25 to 34	13.6%	15.5%
35 to 44	14.9%	9.0%
45 to 54	11.4%	12.8%
55 to 64	15.1%	14.4%
65 to 74	11.4%	7.4%
75 and over	7.7%	5.6%

Race & ethnicity (share)

	Affton	Spanish Lake
White (non-Hispanic)	80.2%	13.4%
Black or African American	2.9%	81.3%
American Indian & Alaska Native	0.0%	0.1%
Asian	4.3%	0.2%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.1%	0.5%
Two or more races	6.6%	3.4%
Hispanic or Latino	5.9%	1.1%

Educational attainment (age 25+)

Share of adults 25+

	Affton	Spanish Lake
No high school diploma	7.4%	9.9%
High school graduate	23.6%	37.1%
Some college or associate's	34.0%	39.7%
Bachelor's degree	20.5%	7.3%
Graduate or professional degree	14.5%	5.9%

Commute to work

How workers get to work (share)

	Affton	Spanish Lake
Drove alone	76.2%	72.6%
Carpooled	11.2%	13.1%
Public transit	0.7%	0.2%
Walked	0.8%	3.0%
Bicycle	0.2%	0.0%
Worked from home	9.4%	10.0%
Other means	1.5%	1.1%

Housing

Units in structure (share)

	Affton	Spanish Lake
1-unit, detached	83.5%	62.1%
1-unit, attached	2.0%	9.1%
2 to 4 units	6.8%	7.6%
5 to 19 units	5.1%	13.6%
20 or more units	2.5%	7.6%
Mobile home & other	0.1%	0.0%

Poverty & households

	Affton	Spanish Lake
Poverty rate	5.6%	17.3%
Average household size	2.26	2.48
Mean commute (minutes)	23	24
Median year structure built	1959	1969