Walnut, IA demographics:
population, income, and more

Total population
1,342
0.2% year-over-year change
Median household income
$62,500/yr
-4.3% year-over-year change
Housing units
386
-6.3% year-over-year change

Walnut population

How many people live in Walnut

Walnut is home to 1,342 residents, according to the most recent Census data. Gender-wise, 40.9% of Walnut locals are male, and 59.1% are female.

Total population
1,342
0.2% year-over-year change
Gender ratio
Male
40.9%
549
Female
59.1%
793
Value Percent YoY change
Male 549 40.9% -3.5%
Female 793 59.1% 3.0%
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 Walnut is 67, with the population distributed as follows: about 9.9% are children under 15, then 4% are in the 15 to 24 age group. Adults between 25 and 44 make up 12.2% of the population, while another 19.7% fall into the 45 to 64 bracket. Finally, around 54.2% are 65 or older.

Median age
67.3
Age breakdown
Under 15
9.9%
15 to 24
4%
25 to 44
12.2%
45 to 64
19.7%
Over 65
54.2%
Value Percent YoY change
Under 15 133 9.9% 4.7%
15 to 24 54 4% 17.4%
25 to 44 163 12.2% 5.8%
45 to 64 264 19.7% -13.2%
Over 65 728 54.2% 2.8%
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 Walnut, 99.2% of the population are US-born citizens, while 0.2% have gained naturalized citizenship. At the same time, 0.7% of residents are non-citizens. There’s also a share of 3.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
99.2%
Non-U.S.-born citizens
0.2%
Non-citizens
0.7%
Value Percent YoY change
U.S.-born citizens 1,331 99.2% 0.2%
Non-U.S.-born citizens 2 0.2% 0.0%
Non-citizens 9 0.7% 0.0%
Racial breakdown
White
95.5%
Black or African American
0.7%
American Indian and Alaska Native
0.4%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
3.1%
Other
0.4%
Value Percent
White 1,282 95.5%
Black or African American 9 0.7%
American Indian and Alaska Native 5 0.4%
Two or more races 41 3.1%
Other 5 0.4%

Households in Walnut

A peek inside Walnut households

Walnut has 332 households, with an average of 2 members in each. Of these, 56.9% are families, while the remaining 43.1% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
332
-6.7% year-over-year change
Average people per household
2
Non-family households
143
Family households
189
Value Percent YoY change
Non-family households 143 43.1% -8.3%
Family households 189 56.9% -5.5%
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 Walnut

The housing landscape of Walnut

Walnut's housing consists of 386 units, with 82.9% 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 1.8% of the housing landscape.

Housing units
386
-6.3% year-over-year change
Housing types
Value Percent
1 unit, detached 320 82.9%
3 or 4 units 15 3.9%
20 to 49 units 36 9.3%
50 or more units 8 2.1%
Mobile home 7 1.8%
Homes built since 2020
0
% year-over-year change

The age of buildings in Walnut

In Walnut, the median construction year is 1943. About 48.7% of homes were built before the 1940s, with another 4.2% 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 188 48.7% -9.6%
Built between 1940 and 1949 16 4.2% -20.0%
Built between 1950 and 1959 54 14% -6.9%
Built between 1960 and 1969 59 15.3% -6.3%
Built between 1970 and 1979 36 9.3% 2.9%
Built between 1980 and 1989 10 2.6% 42.9%
Built between 1990 and 1999 9 2.3% -25.0%
Built between 2000 and 2009 12 3.1% 140.0%
Built between 2010 and 2019 2 0.5% -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.

Walnut occupancy rates

Out of the 332 occupied housing units in Walnut, 72.3% are owner-occupied, while 27.7% are lived in by tenants. Meanwhile, 14% of all homes on the local market sit vacant.

Occupied housing units
332
-6.7% year-over-year change
Occupancy breakdown
Renter occupied
92
Owner occupied
240
Value Percent YoY
change
Renter occupied 92 27.7% -6.1%
Owner occupied 240 72.3% -7.0%
Unoccupied housing units
14.0%
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.

Walnut housing costs

Housing costs in Walnut come to a median of $790 per month, while tenants specifically pay a median gross rent of $874.

Median housing costs per month
$790/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 Walnut
$874/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 Walnut

Walnut education at a glance

About 48.1% of the population in Walnut went to high school, while 20.6% pursued college studies. Another 12.8% earned an associate degree and 9.4% hold a bachelor’s. Meanwhile, 4.5% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 54 4.6% 0.0%
High school diploma 561 48.1% -3.1%
College diploma 240 20.6% 13.2%
Associate degree 149 12.8% -1.3%
Bachelor's degree 110 9.4% -16.0%
Graduate degree 53 4.5% 0.0%
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 Walnut

How much people earn in Walnut

The average annual household income in Walnut was $79,044 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +3.7% change from the previous year. At the same time, the median income stood at $62,500, reflecting a -4.3% shift over the same period.

Average household income in Walnut
$79,044/year
3.7% year-over-year change
Median household income in Walnut
$62,500/year
-4.3% year-over-year change

Walnut income by age

In Walnut, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $85,750. Those with someone between 45 and 64 in charge, often well established professionally, earn $70,417 overall. Overall, 87.4% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $85,750 25.2%
45 - 64 $70,417 3.5%
Over 65 $40,000 -5.1%
Above poverty level
603
Below poverty level
87
Value Percent YoY
change
Above poverty level 603 87.4% -4.1%
Below poverty level 87 12.6% 26.1%

Average renter income in Walnut

To get a better sense of what renters earn on average in Walnut, their median household income was $36,875 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 28.4%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$36,875
Rent-to-income ratio
28.4%
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 Walnut

Workforce and job types in Walnut

The job market in Walnut is powered by 343 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, 16% run their own businesses, 71.4% are employed by private companies, and 9% work in the public sector.

Workforce demographics

Working population
343
-8.5% year-over-year change
White collar
238
Blue collar
105
Value Percent YoY change
White collar 238 69.4% 0.8%
Blue collar 105 30.6% -24.5%
Employer type
Self employees
16%
Private companies
71.4%
Governmental workers
9%
Not for profit companies
3.5%
Value Percent YoY change
Self employees 55 16% 1.9%
Private companies 245 71.4% -13.4%
Governmental workers 31 9% 6.9%
Not for profit companies 12 3.5% 33.3%
Unemployment rate
4.2%
15.4% year-over-year change

Available workforce

The unemployment rate in Walnut stands at 4.2%, 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 Walnut

How people get around in Walnut

Means of transportation
Value Percent YoY change
Car 295 86% -11.9%
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 Walnut by zipcode?

Zipcode Population Number of households Median income Average income
51577 1,561 406 $71,518 $89,243

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FAQs about Walnut demographics 

What is the total population of Walnut?

Walnut has a total population of 1,342 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 +0.2% compared to a year ago.

What is the gender ratio in Walnut?

The gender ratio in Walnut is as follows:
  • 40.9% males (549 residents)
  • 59.1% females (793 residents)

What is the median age in Walnut?

The median age in Walnut is 67.3.

What is the age distribution of the population in Walnut?

The age distribution in Walnut is as follows:
  • Under 15: 9.9% (133 residents)
  • Ages 15-24: 4% (54 residents)
  • Ages 25-44: 12.2% (163 residents)
  • Ages 45-64: 19.7% (264 residents)
  • Over 65: 54.2% (728 residents)

What is the racial and ethnic makeup of Walnut?

The racial and ethnic makeup of Walnut is as follows:
  • White: 95.5% (1,282 residents)
  • Black or African American: 0.7% (9 residents)
  • American Indian and Alaska Native: 0.4% (5 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 3.1% (41 residents)
  • Other: 0.4% (5 residents)

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

U.S.-born citizens represent 99.2% of the population in Walnut.

How many housing units are there in Walnut?

There are 386 housing units in Walnut, reflecting a -6.3% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Walnut has a total of 332 households, with an average of 2 people in each.

What is the median household income in Walnut?

Walnut has a median household income of $62,500, representing a -4.3% shift from the previous year, according to the U.S. Census Bureau.

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

The employment rate is 95.8% in Walnut, with a workforce of 343 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 69.4% (238 residents)
  • Blue-collar workers: 30.6% (105 residents)

Places of employment:
  • Self-employed: 16% (55 residents)
  • Private companies: 71.4% (245 residents)
  • Governmental workers: 9% (31 residents)
  • Not-for-profit companies: 3.5% (12 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