Diagonal, IA demographics:
population, income, and more

Total population
454
-5.6% year-over-year change
Median household income
$74,375/yr
-7.5% year-over-year change
Housing units
159
-2.5% year-over-year change

Diagonal population

How many people live in Diagonal

Diagonal is home to 454 residents, according to the most recent Census data. Gender-wise, 39.9% of Diagonal locals are male, and 60.1% are female.

Total population
454
-5.6% year-over-year change
Gender ratio
Male
39.9%
181
Female
60.1%
273
Value Percent YoY change
Male 181 39.9% -9.5%
Female 273 60.1% -2.9%
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 Diagonal is 49, with the population distributed as follows: about 14.5% are children under 15, then 13.2% are in the 15 to 24 age group. Adults between 25 and 44 make up 17.4% of the population, while another 21.6% fall into the 45 to 64 bracket. Finally, around 33.3% are 65 or older.

Median age
49.2
Age breakdown
Under 15
14.5%
15 to 24
13.2%
25 to 44
17.4%
45 to 64
21.6%
Over 65
33.3%
Value Percent YoY change
Under 15 66 14.5% -2.9%
15 to 24 60 13.2% -11.8%
25 to 44 79 17.4% -13.2%
45 to 64 98 21.6% 12.6%
Over 65 151 33.3% -9.6%
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 Diagonal, 99.3% of the population are US-born citizens, while 0.7% have gained naturalized citizenship. There’s also a share of 13.7% that includes residents with two or more races.

Citizenship
U.S.-born citizens
99.3%
Non-U.S.-born citizens
0.7%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 451 99.3% -5.5%
Non-U.S.-born citizens 3 0.7% -25.0%
Racial breakdown
White
86.3%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
13.7%
Other
0%
Value Percent
White 392 86.3%
Two or more races 62 13.7%

Households in Diagonal

A peek inside Diagonal households

Diagonal has 141 households, with an average of 3 members in each. Of these, 76.6% are families, while the remaining 23.4% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
141
-6.6% year-over-year change
Average people per household
3
Non-family households
33
Family households
108
Value Percent YoY change
Non-family households 33 23.4% -13.2%
Family households 108 76.6% -4.4%
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 Diagonal

The housing landscape of Diagonal

Diagonal's housing consists of 159 units, with 88.7% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 7.6% of the housing landscape.

Housing units
159
-2.5% year-over-year change
Housing types
Value Percent
1 unit, detached 141 88.7%
3 or 4 units 4 2.5%
5 to 9 units 1 0.6%
Mobile home 12 7.6%
Boat, RV, van, etc. 1 0.6%
Homes built since 2020
0
% year-over-year change

The age of buildings in Diagonal

In Diagonal, the median construction year is 1938. About 63.5% of homes were built before the 1940s, with another 3.1% 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 101 63.5% -1.9%
Built between 1940 and 1949 5 3.1% 0.0%
Built between 1950 and 1959 5 3.1% -50.0%
Built between 1960 and 1969 3 1.9% -40.0%
Built between 1970 and 1979 22 13.8% 69.2%
Built between 1980 and 1989 8 5% -33.3%
Built between 1990 and 1999 7 4.4% 16.7%
Built between 2000 and 2009 5 3.1% -16.7%
Built between 2010 and 2019 3 1.9% 0.0%
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.

Diagonal occupancy rates

Out of the 141 occupied housing units in Diagonal, 90.1% are owner-occupied, while 9.9% are lived in by tenants. Meanwhile, 11.3% of all homes on the local market sit vacant.

Occupied housing units
141
-6.6% year-over-year change
Occupancy breakdown
Renter occupied
14
Owner occupied
127
Value Percent YoY
change
Renter occupied 14 9.9% -12.5%
Owner occupied 127 90.1% -5.9%
Unoccupied housing units
11.3%
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.

Diagonal housing costs

Housing costs in Diagonal come to a median of $869 per month, while tenants specifically pay a median gross rent of $825.

Median housing costs per month
$869/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 Diagonal
$825/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 Diagonal

Diagonal education at a glance

About 50% of the population in Diagonal went to high school, while 26.1% pursued college studies. Another 6.2% earned an associate degree and 13.9% hold a bachelor’s. Meanwhile, 3.7% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
High school diploma 176 50% -12.4%
College diploma 92 26.1% -5.2%
Associate degree 22 6.2% -15.4%
Bachelor's degree 49 13.9% 4.3%
Graduate degree 13 3.7% 30.0%
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 Diagonal

How much people earn in Diagonal

The average annual household income in Diagonal was $72,079 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -1.1% change from the previous year. At the same time, the median income stood at $74,375, reflecting a -7.5% shift over the same period.

Average household income in Diagonal
$72,079/year
-1.1% year-over-year change
Median household income in Diagonal
$74,375/year
-7.5% year-over-year change

Diagonal income by age

In Diagonal, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $83,125. Those with someone between 45 and 64 in charge, often well established professionally, earn $90,583 overall. Overall, 92.7% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $83,125 11.1%
45 - 64 $90,583 2.9%
Over 65 $41,875 0.8%
Above poverty level
331
Below poverty level
26
Value Percent YoY
change
Above poverty level 331 92.7% -2.4%
Below poverty level 26 7.3% 13.0%

Average renter income in Diagonal

To get a better sense of what renters earn on average in Diagonal, their median household income was $50,833 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 19.5%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$50,833
Rent-to-income ratio
19.5%
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 Diagonal

Workforce and job types in Diagonal

The job market in Diagonal is powered by 193 working residents, spread across a range of industries and roles. 69.4% of the working population are employed in professional or administrative positions, while 30.6% are in hands-on or service-based jobs. Also, 21.8% run their own businesses, 57.5% are employed by private companies, and 15.5% work in the public sector.

Workforce demographics

Working population
193
-4.0% year-over-year change
White collar
134
Blue collar
59
Value Percent YoY change
White collar 134 69.4% -2.2%
Blue collar 59 30.6% -7.8%
Employer type
Self employees
21.8%
Private companies
57.5%
Governmental workers
15.5%
Not for profit companies
5.2%
Value Percent YoY change
Self employees 42 21.8% -17.6%
Private companies 111 57.5% 3.7%
Governmental workers 30 15.5% 7.1%
Not for profit companies 10 5.2% -33.3%
Unemployment rate
4.5%
-18.2% year-over-year change

Available workforce

The unemployment rate in Diagonal stands at 4.5%, 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 Diagonal

How people get around in Diagonal

In Diagonal, the average commute time is 16 minutes. Commuting methods vary: 81.2% of residents travel by personal vehicle and 2.1% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
16 min
Means of transportation
Value Percent YoY change
Car 156 81.2% 0.0%
Walk 4 2.1% -33.3%
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 Diagonal by zipcode?

Zipcode Population Number of households Median income Average income
50845 831 305 $66,563 $80,338

Explore more communities

FAQs about Diagonal demographics 

What is the total population of Diagonal?

Diagonal has a total population of 454 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 -5.6% compared to a year ago.

What is the gender ratio in Diagonal?

The gender ratio in Diagonal is as follows:
  • 39.9% males (181 residents)
  • 60.1% females (273 residents)

What is the median age in Diagonal?

The median age in Diagonal is 49.2.

What is the age distribution of the population in Diagonal?

The age distribution in Diagonal is as follows:
  • Under 15: 14.5% (66 residents)
  • Ages 15-24: 13.2% (60 residents)
  • Ages 25-44: 17.4% (79 residents)
  • Ages 45-64: 21.6% (98 residents)
  • Over 65: 33.3% (151 residents)

What is the racial and ethnic makeup of Diagonal?

The racial and ethnic makeup of Diagonal is as follows:
  • White: 86.3% (392 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 13.7% (62 residents)
  • Other: 0% (0 residents)

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

U.S.-born citizens represent 99.3% of the population in Diagonal.

How many housing units are there in Diagonal?

There are 159 housing units in Diagonal, reflecting a -2.5% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Diagonal has a total of 141 households, with an average of 3 people in each.

What is the median household income in Diagonal?

Diagonal has a median household income of $74,375, representing a -7.5% shift from the previous year, according to the U.S. Census Bureau.

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

The employment rate is 95.5% in Diagonal, with a workforce of 193 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 69.4% (134 residents)
  • Blue-collar workers: 30.6% (59 residents)

Places of employment:
  • Self-employed: 21.8% (42 residents)
  • Private companies: 57.5% (111 residents)
  • Governmental workers: 15.5% (30 residents)
  • Not-for-profit companies: 5.2% (10 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