Marengo, IA demographics:
population, income, and more

Total population
2,725
-3.5% year-over-year change
Median household income
$57,941/yr
-0.3% year-over-year change
Housing units
1,240
0.6% year-over-year change

Marengo population

How many people live in Marengo

Marengo is home to 2,725 residents, according to the most recent Census data. Gender-wise, 49% of Marengo locals are male, and 51% are female.

Total population
2,725
-3.5% year-over-year change
Gender ratio
Male
49%
1,336
Female
51%
1,389
Value Percent YoY change
Male 1,336 49% -1.6%
Female 1,389 51% -5.2%
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 is 40, with the population distributed as follows: about 20.7% are children under 15, then 7.7% are in the 15 to 24 age group. Adults between 25 and 44 make up 29.3% of the population, while another 21.1% fall into the 45 to 64 bracket. Finally, around 21.2% are 65 or older.

Median age
39.6
Age breakdown
Under 15
20.7%
15 to 24
7.7%
25 to 44
29.3%
45 to 64
21.1%
Over 65
21.2%
Value Percent YoY change
Under 15 564 20.7% -10.6%
15 to 24 211 7.7% -12.8%
25 to 44 799 29.3% -6.3%
45 to 64 574 21.1% 1.4%
Over 65 577 21.2% 8.7%
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, 98.8% of the population are US-born citizens, while 0.9% have gained naturalized citizenship. At the same time, 0.3% of residents are non-citizens. There’s also a share of 3.2% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.8%
Non-U.S.-born citizens
0.9%
Non-citizens
0.3%
Value Percent YoY change
U.S.-born citizens 2,693 98.8% -2.9%
Non-U.S.-born citizens 25 0.9% 19.1%
Non-citizens 7 0.3% -75.0%
Racial breakdown
White
94.9%
Black or African American
1.1%
American Indian and Alaska Native
0.4%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
3.2%
Other
0.4%
Value Percent
White 2,586 94.9%
Black or African American 31 1.1%
American Indian and Alaska Native 10 0.4%
Two or more races 86 3.2%
Other 12 0.4%

Households in Marengo

A peek inside Marengo households

Marengo has 1,148 households, with an average of 2 members in each. Of these, 59.9% are families, while the remaining 40.1% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,148
-0.3% year-over-year change
Average people per household
2
Non-family households
460
Family households
688
Value Percent YoY change
Non-family households 460 40.1% 4.1%
Family households 688 59.9% -3.1%
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

The housing landscape of Marengo

Marengo's housing consists of 1,240 units, with 74.9% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1.4% 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 7.7% of the housing landscape.

Housing units
1,240
0.6% year-over-year change
Housing types
Value Percent
1 unit, detached 929 74.9%
1 unit, attached 18 1.4%
3 or 4 units 109 8.8%
5 to 9 units 40 3.2%
10 to 19 units 30 2.4%
20 to 49 units 15 1.2%
50 or more units 3 0.2%
Mobile home 96 7.7%
Homes built since 2020
0
% year-over-year change

The age of buildings in Marengo

In Marengo, the median construction year is 1962. About 38% of homes were built before the 1940s, with another 4.4% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 471 38% -7.3%
Built between 1940 and 1949 55 4.4% -8.3%
Built between 1950 and 1959 80 6.4% 25.0%
Built between 1960 and 1969 65 5.2% 20.4%
Built between 1970 and 1979 294 23.7% 24.1%
Built between 1980 and 1989 54 4.4% -5.3%
Built between 1990 and 1999 126 10.2% -19.2%
Built between 2000 and 2009 53 4.3% -10.2%
Built between 2010 and 2019 42 3.4% 10.5%
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 occupancy rates

Out of the 1,148 occupied housing units in Marengo, 69.2% are owner-occupied, while 30.8% are lived in by tenants. Meanwhile, 7.4% of all homes on the local market sit vacant.

Occupied housing units
1,148
-0.3% year-over-year change
Occupancy breakdown
Renter occupied
354
Owner occupied
794
Value Percent YoY
change
Renter occupied 354 30.8% -5.8%
Owner occupied 794 69.2% 2.3%
Unoccupied housing units
7.4%
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 housing costs

Housing costs in Marengo come to a median of $854 per month, while tenants specifically pay a median gross rent of $700.

Median housing costs per month
$854/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
$700/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

Marengo education at a glance

About 51.4% of the population in Marengo went to high school, while 21.4% pursued college studies. Another 12.2% earned an associate degree and 10.3% hold a bachelor’s. Meanwhile, 2.5% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 46 2.2% -22.0%
High school diploma 1,078 51.4% 5.3%
College diploma 448 21.4% -5.9%
Associate degree 257 12.2% -1.9%
Bachelor's degree 216 10.3% 4.8%
Graduate degree 53 2.5% -3.6%
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

How much people earn in Marengo

The average annual household income in Marengo was $66,477 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -1.2% change from the previous year. At the same time, the median income stood at $57,941, reflecting a -0.3% shift over the same period.

Average household income in Marengo
$66,477/year
-1.2% year-over-year change
Median household income in Marengo
$57,941/year
-0.3% year-over-year change

Marengo income by age

In Marengo, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $61,182. Those with someone between 45 and 64 in charge, often well established professionally, earn $62,604 overall. Overall, 86.7% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $61,182 -9.7%
45 - 64 $62,604 3.9%
Over 65 $41,591 -13.4%
Above poverty level
2,269
Below poverty level
347
Value Percent YoY
change
Above poverty level 2,269 86.7% -3.9%
Below poverty level 347 13.3% 0.0%

Average renter income in Marengo

To get a better sense of what renters earn on average in Marengo, their median household income was $33,636 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 25%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$33,636
Rent-to-income ratio
25%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Marengo

Workforce and job types in Marengo

The job market in Marengo is powered by 1,385 working residents, spread across a range of industries and roles. 69.5% of the working population are employed in professional or administrative positions, while 30.5% are in hands-on or service-based jobs. Also, 8.4% run their own businesses, 71.2% are employed by private companies, and 15.4% work in the public sector.

Workforce demographics

Working population
1,385
-1.3% year-over-year change
White collar
962
Blue collar
423
Value Percent YoY change
White collar 962 69.5% 1.2%
Blue collar 423 30.5% -6.4%
Employer type
Self employees
8.4%
Private companies
71.2%
Governmental workers
15.4%
Not for profit companies
4.9%
Value Percent YoY change
Self employees 117 8.4% -1.7%
Private companies 986 71.2% -1.2%
Governmental workers 214 15.4% -0.5%
Not for profit companies 68 4.9% -4.2%
Unemployment rate
1.8%
-52.7% year-over-year change

Available workforce

The unemployment rate in Marengo stands at 1.8%, 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

How people get around in Marengo

Commuting methods vary: 90.1% of residents travel by personal vehicle and 3.5% 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 1,223 90.1% -3.5%
Bicycle 4 0.3% 0.0%
Walk 48 3.5% 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 by zipcode?

Zipcode Population Number of households Median income Average income
52301 4,028 1,681 $70,150 $76,422

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FAQs about Marengo demographics 

What is the total population of Marengo?

Marengo has a total population of 2,725 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 -3.5% compared to a year ago.

What is the gender ratio in Marengo?

The gender ratio in Marengo is as follows:
  • 49% males (1,336 residents)
  • 51% females (1,389 residents)

What is the median age in Marengo?

The median age in Marengo is 39.6.

What is the age distribution of the population in Marengo?

The age distribution in Marengo is as follows:
  • Under 15: 20.7% (564 residents)
  • Ages 15-24: 7.7% (211 residents)
  • Ages 25-44: 29.3% (799 residents)
  • Ages 45-64: 21.1% (574 residents)
  • Over 65: 21.2% (577 residents)

What is the racial and ethnic makeup of Marengo?

The racial and ethnic makeup of Marengo is as follows:
  • White: 94.9% (2,586 residents)
  • Black or African American: 1.1% (31 residents)
  • American Indian and Alaska Native: 0.4% (10 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 3.2% (86 residents)
  • Other: 0.4% (12 residents)

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

U.S.-born citizens represent 98.8% of the population in Marengo.

How many housing units are there in Marengo?

There are 1,240 housing units in Marengo, reflecting a +0.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Marengo has a total of 1,148 households, with an average of 2 people in each.

What is the median household income in Marengo?

Marengo has a median household income of $57,941, representing a -0.3% shift from the previous year, according to the U.S. Census Bureau.

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

The employment rate is 98.2% in Marengo, with a workforce of 1,385 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 69.5% (962 residents)
  • Blue-collar workers: 30.5% (423 residents)

Places of employment:
  • Self-employed: 8.4% (117 residents)
  • Private companies: 71.2% (986 residents)
  • Governmental workers: 15.4% (214 residents)
  • Not-for-profit companies: 4.9% (68 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