United States › Mississippi › Bay St. Louis CITY
Bay St. Louis Mississippi · 10,634 residents (2025 est.) · 14.7 sq mi
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The short version
Bay St. Louis is a city of 10,188 people in Mississippi. The median age is 53.3, about 14 years above the US median. 77% of homes are owner-occupied. The foreign-born share is 3%. The population is up 24% since 2000. That is roughly 19% ahead of the Mississippi median.
At a glance
Lower income
below the US median
US median: $82,259
Older
median age 53.3
US median: 38.9
Average education
38% hold a bachelor's degree
US average: 36%
Less affordable
home values up 54%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 8,209 in 2000
10,634 in 2025 (Census Bureau estimate)
693 / sq mi
+15%since 2009
from 603 / sq mi in 2009
US average: 281
from 39.2 in 2000
US average: 38.9
Population, 1990 – 2024
8K 9K 11K 12K 14K 1990 2000 2010 2020 2024 Bay St. Louis Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $67,442
+9%inflation adjusted, since 2000
from $34,106 in 2000
US average: $82,259
from $18,483 in 2000
US average: $44,673
Households earning $100K+
from 28.1% in 2009
US average: 53.3%
from 13.2% in 2000
US average: 12.5%
from 0.452 in 2010
US average: 0.476
Workforce by industry, 2024
Education & health services 9.7%
Professional, scientific, technical 3.3%
Public administration 3.1%
Transportation & warehousing 2.8%
Arts, entertainment, food 1.3%
Agriculture, forestry, fishing 1%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$260,200
+54%inflation adjusted, since 2000
from $92,500 in 2000
US average: $376,019
$1,179
+24%inflation adjusted, since 2000
from $520 in 2000
US average: $1,442
from 65.8% in 2000
23.3% rent
from 24.3% in 2009
US average: 10.0%
1.97 people
−15%since 2009
from 2.33 people in 2009
US average: 2.54
from 25.7% in 2009
US average: 22.9%
from 28.9% in 2009
US average: 47.4%
from 4.2 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 79%(6,483)
Hispanic / Latino 1.7%(138)
2024
White, non-Hispanic 75.6%(7,701)
Hispanic / Latino 4.6%(469)
from 37 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 12 more ancestry groups with data from 25.1% in 2000
US average: 35.6%
High school or higher
from 82.9% in 2000
US average: 89.6%
from 10.6% in 2000
US average: 14.0%
Section 06
Commute & transportation from 19.0 min in 2000
US average: 26.5
from 80.4% in 2009
US average: 68.9%
from 13.1% in 2009
US average: 8.5%
from 0.0% in 2009
US average: 3.2%
from 3.2% in 2009
US average: 15.0%
from 1.5% in 2009
US average: 2.4%
from 0.3% in 2009
US average: 0.4%
from 2.4% in 2009
US average: 8.3%
Section 07
Work & employment from 8.6% in 2011
US average: 5.2%
from 59.5% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 71.6% in 2020
US average: 74.6%
from 16.7% in 2009
US average: 13.1%
from 26.7% in 2009
US average: 42.5%
Section 08
People & community from 1.5% in 2009
US average: 14.1%
from 17.5% in 2009
US average: 6.2%
from 17.6% in 2012
US average: 13.3%
from 22.9% in 2013
US average: 8.4%
from 75.6% in 2017
US average: 91.0%
Computer in household
from 91.7% in 2020
US average: 95.5%
from 84.6% in 2020
US average: 87.7%
from 94.3% in 2016
US average: 77.7%
from 3.2% in 2016
US average: 13.6%
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 22.9% in 2013
US average: 8.4%
from 54.8% in 2020
US average: 54.8%
Direct-purchase
from 12.1% in 2020
US average: 13.8%
from 27.2% in 2020
US average: 18.4%
from 16.3% in 2020
US average: 20.9%
VA health care
from 3.9% in 2020
US average: 2.2%
Any private
from 68.5% in 2020
US average: 67.1%
Any public
from 41.9% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 43.8%(383)
Gulf War (1990s) 45.4%(397)
Share of the 874 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Bay St. Louis Head to head
Compare Bay St. Louis to nearby cities BAY ST. LOUIS VS
Diamondhead
Income $87,407 +30%
Home value $259,600 same
Population 9,441 −11%
SEE FULL COMPARISON →
BAY ST. LOUIS VS
Long Beach
Income $70,332 +4%
Home value $215,200 −17%
Population 17,309 +63%
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BAY ST. LOUIS VS
Gulfport
Income $49,919 −26%
Home value $174,600 −33%
Population 76,506 +619%
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BAY ST. LOUIS VS
Picayune
Income $41,213 −39%
Home value $157,100 −40%
Population 12,019 +13%
SEE FULL COMPARISON →
Frequently asked
How many people live in Bay St. Louis, Mississippi? Bay St. Louis, Mississippi has about 10,188 residents according to the 2024 American Community Survey.
What is the median household income in Bay St. Louis, Mississippi? The typical household in Bay St. Louis, Mississippi earns about $67,442 a year. Half of households make more than that, and half make less.
Is Bay St. Louis, Mississippi expensive? In Bay St. Louis, Mississippi, the median home is worth about $260,200, and the typical rent is about $1,179 a month.
How educated are people in Bay St. Louis, Mississippi? About 38.3% of adults age 25 and over in Bay St. Louis, Mississippi hold a bachelor's degree or higher.
What is the poverty rate in Bay St. Louis, Mississippi? About 14.5% of people in Bay St. Louis, Mississippi live below the federal poverty line.
Has Bay St. Louis, Mississippi grown since 1990? Yes, Bay St. Louis, Mississippi has grown since 1990. The population has added about 2,125 residents, a change of about 26 percent over that period.
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