Mark Twain - I-70 Industrial, Saint Louis, MO demographics:
population, income, and more

Total population
3,489
-2.8% year-over-year change
Median household income
$32,899/yr
-0.3% year-over-year change
Housing units
2,219
-1.6% year-over-year change

Mark Twain - I-70 Industrial population

How many people live in Mark Twain - I-70 Industrial

Mark Twain - I-70 Industrial is home to 3,489 residents, according to the most recent Census data. Gender-wise, 45.3% of Mark Twain - I-70 Industrial locals are male, and 54.7% are female.

Total population
3,489
-2.8% year-over-year change
Gender ratio
Male
45.3%
1,582
Female
54.7%
1,907
Value Percent YoY change
Male 1,582 45.3% -3.6%
Female 1,907 54.7% -2.1%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Mark Twain - I-70 Industrial is 39, with the population distributed as follows: about 21.6% are children under 15, then 10.6% are in the 15 to 24 age group. Adults between 25 and 44 make up 25.2% of the population, while another 23.8% fall into the 45 to 64 bracket. Finally, around 18.8% are 65 or older.

Median age
39
Age breakdown
Under 15
21.6%
15 to 24
10.6%
25 to 44
25.2%
45 to 64
23.8%
Over 65
18.8%
Value Percent YoY change
Under 15 752 21.6% -12.5%
15 to 24 370 10.6% -7.3%
25 to 44 881 25.2% 11.5%
45 to 64 830 23.8% -4.2%
Over 65 656 18.8% -3.4%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Mark Twain - I-70 Industrial, 98.1% of the population are US-born citizens, while 1% have gained naturalized citizenship. At the same time, 0.8% of residents are non-citizens. As for race, 2.7% of locals are Caucasian, 89.9% are African American and 0.1% have Asian roots. Another 0.3% are Indigenous American, 0.1% are Pacific Islanders, while 0.6% identify as another race. There’s also a share of 6.4% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.1%
Non-U.S.-born citizens
1%
Non-citizens
0.8%
Value Percent YoY change
U.S.-born citizens 3,424 98.1% -3.5%
Non-U.S.-born citizens 36 1% 71.4%
Non-citizens 29 0.8% 31.8%
Racial breakdown
White
2.7%
Black or African American
89.9%
American Indian and Alaska Native
0.3%
Asian
0.1%
Native Hawaiian and other Pacific Islander
0.1%
Two or more races
6.4%
Other
0.6%
Value Percent
White 94 2.7%
Black or African American 3,137 89.9%
American Indian and Alaska Native 10 0.3%
Asian 2 0.1%
Native Hawaiian and other Pacific Islander 4 0.1%
Two or more races 222 6.4%
Other 20 0.6%

Households in Mark Twain - I-70 Industrial

A peek inside Mark Twain - I-70 Industrial households

Mark Twain - I-70 Industrial has 1,518 households, with an average of 2 members in each. Of these, 52.8% are families, while the remaining 47.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,518
0.5% year-over-year change
Average people per household
2
Non-family households
716
Family households
802
Value Percent YoY change
Non-family households 716 47.2% 3.6%
Family households 802 52.8% -2.2%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Mark Twain - I-70 Industrial

The housing landscape of Mark Twain - I-70 Industrial

Mark Twain - I-70 Industrial's housing consists of 2,219 units, with 59.2% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.8% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 1.7% of the housing landscape.

Housing units
2,219
-1.6% year-over-year change
Housing types
Value Percent
1 unit, detached 1,313 59.2%
1 unit, attached 63 2.8%
2 units 312 14.1%
3 or 4 units 248 11.2%
5 to 9 units 180 8.1%
10 to 19 units 28 1.3%
20 to 49 units 18 0.8%
50 or more units 20 0.9%
Mobile home 37 1.7%
Homes built since 2020
3
50.0% year-over-year change

The age of buildings in Mark Twain - I-70 Industrial

In Mark Twain - I-70 Industrial, the median construction year is 1942. About 54% of homes were built before the 1940s, with another 11.9% going up by 1949. Most development happened in the second half of the 20th century. Then, 3.8% of homes were added from 2000 to 2009, 1.4% between 2010 and 2019, and 0.1% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 1,197 54% -5.0%
Built between 1940 and 1949 264 11.9% -4.3%
Built between 1950 and 1959 226 10.2% 7.1%
Built between 1960 and 1969 192 8.7% 0.0%
Built between 1970 and 1979 114 5.1% 8.6%
Built between 1980 and 1989 67 3% 15.5%
Built between 1990 and 1999 38 1.7% -17.4%
Built between 2000 and 2009 85 3.8% 26.9%
Built between 2010 and 2019 32 1.4% -13.5%
Built in 2020 or later 3 0.1% 50.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Mark Twain - I-70 Industrial occupancy rates

Out of the 1,518 occupied housing units in Mark Twain - I-70 Industrial, 44.3% are owner-occupied, while 55.7% are lived in by tenants. Meanwhile, 31.6% of all homes on the local market sit vacant.

Occupied housing units
1,518
0.5% year-over-year change
Occupancy breakdown
Renter occupied
846
Owner occupied
672
Value Percent YoY
change
Renter occupied 846 55.7% 0.0%
Owner occupied 672 44.3% 1.1%
Unoccupied housing units
31.6%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Mark Twain - I-70 Industrial housing costs

Housing costs in Mark Twain - I-70 Industrial come to a median of $806 per month, while tenants specifically pay a median gross rent of $934.

Median housing costs per month
$806/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Mark Twain - I-70 Industrial
$934/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Mark Twain - I-70 Industrial

Mark Twain - I-70 Industrial education at a glance

About 59.9% of the population in Mark Twain - I-70 Industrial went to high school, while 20.7% pursued college studies. Another 5.4% earned an associate degree and 6.5% hold a bachelor’s. Meanwhile, 4% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 89 3.4% 12.7%
High school diploma 1,568 59.9% 5.3%
College diploma 543 20.7% -11.1%
Associate degree 141 5.4% -11.9%
Bachelor's degree 171 6.5% -9.5%
Graduate degree 106 4% 24.7%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Mark Twain - I-70 Industrial

How much people earn in Mark Twain - I-70 Industrial

The average annual household income in Mark Twain - I-70 Industrial was $49,191 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +7.2% change from the previous year. At the same time, the median income stood at $32,899, reflecting a -0.3% shift over the same period.

Average household income in Mark Twain - I-70 Industrial
$49,191/year
7.2% year-over-year change
Median household income in Mark Twain - I-70 Industrial
$32,899/year
-0.3% year-over-year change

Mark Twain - I-70 Industrial income by age

In Mark Twain - I-70 Industrial, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $32,420. Those with someone between 45 and 64 in charge, often well established professionally, earn $34,058 overall. Overall, 64.2% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $32,420 0.1%
45 - 64 $34,058 -7.2%
Over 65 $30,519 -1.6%
Above poverty level
2,162
Below poverty level
1,208
Value Percent YoY
change
Above poverty level 2,162 64.2% -8.2%
Below poverty level 1,208 35.8% 15.9%

Employment in Mark Twain - I-70 Industrial

Workforce and job types in Mark Twain - I-70 Industrial

78.6% of the working population are employed in professional or administrative positions, while 21.4% are in hands-on or service-based jobs. Also, 7% run their own businesses, 68.9% are employed by private companies, and 13.6% work in the public sector.

Workforce demographics

White collar
948
Blue collar
258
Value Percent YoY change
White collar 948 78.6% -3.6%
Blue collar 258 21.4% -8.5%
Employer type
Self employees
7%
Private companies
68.9%
Governmental workers
13.6%
Not for profit companies
10.5%
Value Percent YoY change
Self employees 84 7% 13.5%
Private companies 831 68.9% -8.6%
Governmental workers 164 13.6% -5.8%
Not for profit companies 127 10.5% 16.5%

Transportation in Mark Twain - I-70 Industrial

How people get around in Mark Twain - I-70 Industrial

In Mark Twain - I-70 Industrial, the average commute time is 7 minutes. Commuting methods vary: 79.6% of residents travel by personal vehicle and 1.3% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
7 min
16.7% year-over-year change
Means of transportation
Value Percent YoY change
Car 759 79.6% -6.8%
Taxicab 5 0.5% -50.0%
Bus or trolleybus 173 18.2% 14.6%
Bicycle 4 0.4% -20.0%
Walk 12 1.3% -69.2%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Mark Twain - I-70 Industrial by zipcode?

Zipcode Population Number of households Median income Average income
63115 14,488 6,953 $30,622 $51,045
63120 6,790 2,722 $35,176 $48,013

Explore more communities

FAQs about Mark Twain - I-70 Industrial demographics 

What is the total population of Mark Twain - I-70 Industrial?

Mark Twain - I-70 Industrial has a total population of 3,489 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -2.8% compared to a year ago.

What is the gender ratio in Mark Twain - I-70 Industrial?

The gender ratio in Mark Twain - I-70 Industrial is as follows:
  • 45.3% males (1,582 residents)
  • 54.7% females (1,907 residents)

What is the median age in Mark Twain - I-70 Industrial?

The median age in Mark Twain - I-70 Industrial is 39.

What is the age distribution of the population in Mark Twain - I-70 Industrial?

The age distribution in Mark Twain - I-70 Industrial is as follows:
  • Under 15: 21.6% (752 residents)
  • Ages 15-24: 10.6% (370 residents)
  • Ages 25-44: 25.2% (881 residents)
  • Ages 45-64: 23.8% (830 residents)
  • Over 65: 18.8% (656 residents)

What is the racial and ethnic makeup of Mark Twain - I-70 Industrial?

The racial and ethnic makeup of Mark Twain - I-70 Industrial is as follows:
  • White: 2.7% (94 residents)
  • Black or African American: 89.9% (3,137 residents)
  • American Indian and Alaska Native: 0.3% (10 residents)
  • Asian: 0.1% (2 residents)
  • Native Hawaiian and Other Pacific Islander: 0.1% (4 residents)
  • Two or More Races: 6.4% (222 residents)
  • Other: 0.6% (20 residents)

What percentage of the population in Mark Twain - I-70 Industrial are U.S.-born citizens?

U.S.-born citizens represent 98.1% of the population in Mark Twain - I-70 Industrial.

How many housing units are there in Mark Twain - I-70 Industrial?

There are 2,219 housing units in Mark Twain - I-70 Industrial, reflecting a -1.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Mark Twain - I-70 Industrial and what is the average household size?

Mark Twain - I-70 Industrial has a total of 1,518 households, with an average of 2 people in each.

What is the median household income in Mark Twain - I-70 Industrial?

Mark Twain - I-70 Industrial has a median household income of $32,899, representing a -0.3% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Mark Twain - I-70 Industrial?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 78.6% (948 residents)
  • Blue-collar workers: 21.4% (258 residents)

Places of employment:
  • Self-employed: 7% (84 residents)
  • Private companies: 68.9% (831 residents)
  • Governmental workers: 13.6% (164 residents)
  • Not-for-profit companies: 10.5% (127 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025