Marengo County, AL demographics:
population, income, and more

Total population
18,851
-0.9% year-over-year change
Median household income
$43,825/yr
-0.9% year-over-year change
Housing units
9,867
0.3% year-over-year change

Marengo County population

How many people live in Marengo County

Marengo County is home to 18,851 residents, according to the most recent Census data. Gender-wise, 47.4% of Marengo County locals are male, and 52.6% are female.

Total population
18,851
-0.9% year-over-year change
Gender ratio
Male
47.4%
8,931
Female
52.6%
9,920
Value Percent YoY change
Male 8,931 47.4% -0.9%
Female 9,920 52.6% -0.9%
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 Marengo County is 41, with the population distributed as follows: about 18.1% are children under 15, then 13.6% are in the 15 to 24 age group. Adults between 25 and 44 make up 21.3% of the population, while another 26.5% fall into the 45 to 64 bracket. Finally, around 20.6% are 65 or older.

Median age
41.4
Age breakdown
Under 15
18.1%
15 to 24
13.6%
25 to 44
21.3%
45 to 64
26.5%
Over 65
20.6%
Value Percent YoY change
Under 15 3,413 18.1% -3.6%
15 to 24 2,556 13.6% 0.1%
25 to 44 4,009 21.3% -2.2%
45 to 64 4,988 26.5% -0.1%
Over 65 3,885 20.6% 1.1%
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 Marengo County, 98.2% of the population are US-born citizens, while 0.9% have gained naturalized citizenship. At the same time, 0.9% of residents are non-citizens. As for race, 44.5% of locals are Caucasian, 50.9% are African American and 0.3% have Asian roots. There’s also a share of 3.2% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.2%
Non-U.S.-born citizens
0.9%
Non-citizens
0.9%
Value Percent YoY change
U.S.-born citizens 18,516 98.2% -1.3%
Non-U.S.-born citizens 166 0.9% 19.4%
Non-citizens 169 0.9% 34.1%
Racial breakdown
White
44.5%
Black or African American
50.9%
American Indian and Alaska Native
0.3%
Asian
0.3%
Native Hawaiian and other Pacific Islander
0%
Two or more races
3.2%
Other
0.9%
Value Percent
White 8,386 44.5%
Black or African American 9,592 50.9%
American Indian and Alaska Native 54 0.3%
Asian 49 0.3%
Two or more races 596 3.2%
Other 174 0.9%

Households in Marengo County

A peek inside Marengo County households

Marengo County has 7,898 households, with an average of 2 members in each. Of these, 56.2% are families, while the remaining 43.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
7,898
3.7% year-over-year change
Average people per household
2
Non-family households
3,459
Family households
4,439
Value Percent YoY change
Non-family households 3,459 43.8% 13.9%
Family households 4,439 56.2% -3.0%
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 Marengo County

The housing landscape of Marengo County

Marengo County's housing consists of 9,867 units, with 56.5% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 0.2% 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 29.5% of the housing landscape.

Housing units
9,867
0.3% year-over-year change
Housing types
Value Percent
1 unit, detached 5,572 56.5%
1 unit, attached 21 0.2%
2 units 333 3.4%
3 or 4 units 413 4.2%
5 to 9 units 324 3.3%
10 to 19 units 136 1.4%
20 to 49 units 133 1.4%
50 or more units 5 0%
Mobile home 2,907 29.5%
Boat, RV, van, etc. 23 0.2%
Homes built since 2020
173
7.5% year-over-year change

The age of buildings in Marengo County

In Marengo County, the median construction year is 1982. About 8.2% of homes were built before the 1940s, with another 3.2% going up by 1949. Most development happened in the second half of the 20th century. Then, 10.2% of homes were added from 2000 to 2009, 5.8% between 2010 and 2019, and 1.8% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 810 8.2% 17.2%
Built between 1940 and 1949 311 3.2% -22.6%
Built between 1950 and 1959 580 5.9% 12.6%
Built between 1960 and 1969 1,075 10.9% -21.1%
Built between 1970 and 1979 1,857 18.8% 28.2%
Built between 1980 and 1989 1,627 16.5% -12.5%
Built between 1990 and 1999 1,856 18.8% -3.7%
Built between 2000 and 2009 1,011 10.2% 18.9%
Built between 2010 and 2019 567 5.8% -8.2%
Built in 2020 or later 173 1.8% 7.5%
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.

Marengo County occupancy rates

Out of the 7,898 occupied housing units in Marengo County, 70.2% are owner-occupied, while 29.8% are lived in by tenants. Meanwhile, 20% of all homes on the local market sit vacant.

Occupied housing units
7,898
3.7% year-over-year change
Occupancy breakdown
Renter occupied
2,350
Owner occupied
5,548
Value Percent YoY
change
Renter occupied 2,350 29.8% -0.3%
Owner occupied 5,548 70.2% 5.5%
Unoccupied housing units
20.0%
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.

Marengo County housing costs

Housing costs in Marengo County come to a median of $649 per month, while tenants specifically pay a median gross rent of $716.

Median housing costs per month
$649/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 Marengo County
$716/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 Marengo County

Marengo County education at a glance

About 42.7% of the population in Marengo County went to high school, while 22.8% pursued college studies. Another 9.2% earned an associate degree and 10.5% hold a bachelor’s. Meanwhile, 7.4% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 1,080 7.4% 11.1%
High school diploma 6,274 42.7% -1.3%
College diploma 3,348 22.8% 1.1%
Associate degree 1,360 9.2% -0.3%
Bachelor's degree 1,543 10.5% -7.0%
Graduate degree 1,092 7.4% 1.3%
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 Marengo County

How much people earn in Marengo County

The average annual household income in Marengo County was $70,748 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +5.5% change from the previous year. At the same time, the median income stood at $43,825, reflecting a -0.9% shift over the same period.

Average household income in Marengo County
$70,748/year
5.5% year-over-year change
Median household income in Marengo County
$43,825/year
-0.9% year-over-year change

Marengo County income by age

In Marengo County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $46,948. Those with someone between 45 and 64 in charge, often well established professionally, earn $59,324 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $39,005, while those led by someone over 65, many of whom may be retired, have about $29,861 in earnings. Overall, 78.4% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $39,005 7.6%
25 - 44 $46,948 15.4%
45 - 64 $59,324 2.8%
Over 65 $29,861 -26.9%
Above poverty level
14,471
Below poverty level
3,988
Value Percent YoY
change
Above poverty level 14,471 78.4% -0.1%
Below poverty level 3,988 21.6% -3.6%

Employment in Marengo County

Workforce and job types in Marengo County

The job market in Marengo County is powered by 7,433 working residents, spread across a range of industries and roles. 63.6% of the working population are employed in professional or administrative positions, while 36.4% are in hands-on or service-based jobs. Also, 8.4% run their own businesses, 67.2% are employed by private companies, and 17.4% work in the public sector.

Workforce demographics

Working population
7,433
0.3% year-over-year change
White collar
4,731
Blue collar
2,702
Value Percent YoY change
White collar 4,731 63.6% -6.7%
Blue collar 2,702 36.4% 15.6%
Employer type
Self employees
8.4%
Private companies
67.2%
Governmental workers
17.4%
Not for profit companies
7%
Value Percent YoY change
Self employees 626 8.4% 11.8%
Private companies 4,994 67.2% 4.4%
Governmental workers 1,293 17.4% -11.9%
Not for profit companies 520 7% -13.5%
Unemployment rate
4.1%
74.2% year-over-year change

Available workforce

The unemployment rate in Marengo County stands at 4.1%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Marengo County

How people get around in Marengo County

Commuting methods vary: 91.3% of residents travel by personal vehicle and 0.7% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 6,604 91.3% -1.6%
Bus or trolleybus 71 1% -22.8%
Walk 48 0.7% 6.7%
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 Marengo County by zipcode?

Zipcode Population Number of households Median income Average income
36728 998 292 $17,679 $25,440
36732 8,387 3,786 $42,216 $73,633
36736 1,559 531 $55,759 $61,819
36738 747 262 $34,583 $45,339
36742 2,656 882 $31,231 $80,434
36748 2,522 1,116 $42,826 $62,602
36754 287 88 $39,583 $44,457
36763 116 48 $89,000 $78,310
36782 1,850 754 $51,429 $73,279
36783 671 263 $47,917 $68,028

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FAQs about Marengo County demographics 

What is the total population of Marengo County?

Marengo County has a total population of 18,851 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 -0.9% compared to a year ago.

What is the gender ratio in Marengo County?

The gender ratio in Marengo County is as follows:
  • 47.4% males (8,931 residents)
  • 52.6% females (9,920 residents)

What is the median age in Marengo County?

The median age in Marengo County is 41.4.

What is the age distribution of the population in Marengo County?

The age distribution in Marengo County is as follows:
  • Under 15: 18.1% (3,413 residents)
  • Ages 15-24: 13.6% (2,556 residents)
  • Ages 25-44: 21.3% (4,009 residents)
  • Ages 45-64: 26.5% (4,988 residents)
  • Over 65: 20.6% (3,885 residents)

What is the racial and ethnic makeup of Marengo County?

The racial and ethnic makeup of Marengo County is as follows:
  • White: 44.5% (8,386 residents)
  • Black or African American: 50.9% (9,592 residents)
  • American Indian and Alaska Native: 0.3% (54 residents)
  • Asian: 0.3% (49 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 3.2% (596 residents)
  • Other: 0.9% (174 residents)

What percentage of the population in Marengo County are U.S.-born citizens?

U.S.-born citizens represent 98.2% of the population in Marengo County.

How many housing units are there in Marengo County?

There are 9,867 housing units in Marengo County, reflecting a +0.3% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Marengo County and what is the average household size?

Marengo County has a total of 7,898 households, with an average of 2 people in each.

What is the median household income in Marengo County?

Marengo County has a median household income of $43,825, representing a -0.9% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Marengo County?

The employment rate is 95.9% in Marengo County, with a workforce of 7,433 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 63.6% (4,731 residents)
  • Blue-collar workers: 36.4% (2,702 residents)

Places of employment:
  • Self-employed: 8.4% (626 residents)
  • Private companies: 67.2% (4,994 residents)
  • Governmental workers: 17.4% (1,293 residents)
  • Not-for-profit companies: 7% (520 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