Lake Saint Clair, MO Profile: Facts & Data

The Lake Saint Clair CDP⁽¹⁾ had a population of 818 as of July 1, 2024. Lake Saint Clair ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Missouri. See peer rankings below.

The primary coordinate point for Lake Saint Clair is located at latitude 38.3229 and longitude -90.9978 in Franklin County. Franklin County is in the Central time zone (GMT -6).

A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

Lake Saint Clair, MO Data & Demographics (As of July 1, 2024)

POPULATION
Total Population	818 (100%)
Population in Households	818 (100.0%)
Population in Families	689 (84.2%)
Population in Group Quarters¹	0
Population Density	1,130
Diversity Index²	19


INCOME
Median Household Income	$71,664
Average Household Income	$83,205
% of Income for Mortgage⁴	19%
Per Capita Income	$31,126
Wealth Index⁵	62
Socioeconomic Status Index⁶	Moderate (57.6)

HOUSING
Total HU (Housing Units)	332 (100%)
Owner Occupied HU	284 (85.5%)
Renter Occupied HU	22 ( 6.6%)
Vacant Housing Units	26 ( 7.8%)
Median Home Value	$213,750
Average Home Value	$221,303
Housing Affordability Index³	134

HOUSEHOLDS
Total Households	306
Average Household Size	2.67
Family Households	220
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Lake Saint Clair, MO - Peer Comparisons by Rank and Percentile

The table below compares Lake Saint Clair to the other 1,082 incorporated cities, towns and CDPs in Missouri by rank and percentile using July 1, 2024 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2024	2024-2029
Population	-0.20%	-0.34%
Households	0.00%	-0.07%
Families		-0.46%
Median Household Income		3.84%
Per Capita Income		3.50%
Owner Occupied HU		0.14%

Variable Description	Rank	Percentile
Total Population	# 396	63rd
Population Density	# 259	76th
Median Household Income	# 348	68th
Housing Affordability Index	# 708	65th
Per Capita Income	# 564	48th
Diversity Index	# 616	43rd

Lake Saint Clair, MO Profile: Facts & Data

Lake Saint Clair, Missouri - Basic Facts

Lake Saint Clair, MO Data & Demographics (As of July 1, 2024)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Lake Saint Clair, MO - Peer Comparisons by Rank and Percentile

Lake Saint Clair, MO - Most Popular Things to Do

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