Derby, IA demographics:
population, income, and more

Total population
110
3.8% year-over-year change
Median household income
$56,250/yr
-4.3% year-over-year change
Housing units
50
6.4% year-over-year change

Derby population

How many people live in Derby

Derby is home to 110 residents, according to the most recent Census data. Gender-wise, 40% of Derby locals are male, and 60% are female.

Total population
110
3.8% year-over-year change
Gender ratio
Male
40%
44
Female
60%
66
Value Percent YoY change
Male 44 40% 2.3%
Female 66 60% 4.8%
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 Derby is 42, with the population distributed as follows: about 27.3% are children under 15, then 6.4% are in the 15 to 24 age group. Adults between 25 and 44 make up 25.4% of the population, while another 14.6% fall into the 45 to 64 bracket. Finally, around 26.4% are 65 or older.

Median age
41.8
Age breakdown
Under 15
27.3%
15 to 24
6.4%
25 to 44
25.4%
45 to 64
14.6%
Over 65
26.4%
Value Percent YoY change
Under 15 30 27.3% 3.5%
15 to 24 7 6.4% -12.5%
25 to 44 28 25.4% -12.5%
45 to 64 16 14.6% 77.8%
Over 65 29 26.4% 3.6%
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

There’s also a share of 1.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
100%
Non-U.S.-born citizens
0%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 110 100% 3.8%
Racial breakdown
White
98.2%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
1.8%
Other
0%
Value Percent
White 108 98.2%
Two or more races 2 1.8%

Households in Derby

A peek inside Derby households

Derby has 39 households, with an average of 3 members in each. Of these, 74.4% are families, while the remaining 25.6% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
39
11.4% year-over-year change
Average people per household
3
Non-family households
10
Family households
29
Value Percent YoY change
Non-family households 10 25.6% 42.9%
Family households 29 74.4% 3.6%
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 Derby

The housing landscape of Derby

Derby's housing consists of 50 units, with 82% 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 18% of the housing landscape.

Housing units
50
6.4% year-over-year change
Housing types
Value Percent
1 unit, detached 41 82%
Mobile home 9 18%
Homes built since 2020
0
% year-over-year change

The age of buildings in Derby

In Derby, the median construction year is 1953. 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 24 48% 0.0%
Built between 1950 and 1959 3 6% 50.0%
Built between 1960 and 1969 1 2% 0.0%
Built between 1970 and 1979 9 18% -10.0%
Built between 1980 and 1989 1 2% 0.0%
Built between 1990 and 1999 7 14% 75.0%
Built between 2000 and 2009 5 10% 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.

Derby occupancy rates

Out of the 39 occupied housing units in Derby, 97.4% are owner-occupied, while 2.6% are lived in by tenants. Meanwhile, 22% of all homes on the local market sit vacant.

Occupied housing units
39
11.4% year-over-year change
Occupancy breakdown
Renter occupied
1
Owner occupied
38
Value Percent YoY
change
Renter occupied 1 2.6% -50.0%
Owner occupied 38 97.4% 15.2%
Unoccupied housing units
22.0%
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.

Derby housing costs

Median housing costs per month
$638/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.

Education in Derby

Derby education at a glance

About 50.7% of the population in Derby went to high school, while 17.3% pursued college studies. Another 9.3% earned an associate degree and 2.7% hold a bachelor’s.

Education level
Value Percent YoY change
No high school 15 20% 15.4%
High school diploma 38 50.7% 11.8%
College diploma 13 17.3% -18.8%
Associate degree 7 9.3% 40.0%
Bachelor's degree 2 2.7% 100.0%
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 Derby

How much people earn in Derby

The average annual household income in Derby was $58,600 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +0.5% change from the previous year. At the same time, the median income stood at $56,250, reflecting a -4.3% shift over the same period.

Average household income in Derby
$58,600/year
0.5% year-over-year change
Median household income in Derby
$56,250/year
-4.3% year-over-year change

Derby income by age

In Derby, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $65,000. Overall, 66.4% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $65,000 5.4%
Over 65 $45,417 5.3%
Above poverty level
71
Below poverty level
36
Value Percent YoY
change
Above poverty level 71 66.4% 1.4%
Below poverty level 36 33.6% 12.5%

Employment in Derby

Workforce and job types in Derby

The job market in Derby is powered by 43 working residents, spread across a range of industries and roles. 34.9% of the working population are employed in professional or administrative positions, while 65.1% are in hands-on or service-based jobs. Also, 27.9% run their own businesses, 60.5% are employed by private companies, and 11.6% work in the public sector.

Workforce demographics

Working population
43
7.5% year-over-year change
White collar
15
Blue collar
28
Value Percent YoY change
White collar 15 34.9% -21.1%
Blue collar 28 65.1% 33.3%
Employer type
Self employees
27.9%
Private companies
60.5%
Governmental workers
11.6%
Not for profit companies
0%
Value Percent YoY change
Self employees 12 27.9% -7.7%
Private companies 26 60.5% 30.0%
Governmental workers 5 11.6% 66.7%

Transportation in Derby

How people get around in Derby

Means of transportation
Value Percent YoY change
Car 34 79.1% 6.2%
Railroad 2 4.6% 0.0%
Ferryboat 3 7% 200.0%
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 Derby by zipcode?

Zipcode Population Number of households Median income Average income
50068 215 94 $36,500 $58,056

Explore more communities

FAQs about Derby demographics 

What is the total population of Derby?

Derby has a total population of 110 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 +3.8% compared to a year ago.

What is the gender ratio in Derby?

The gender ratio in Derby is as follows:
  • 40% males (44 residents)
  • 60% females (66 residents)

What is the median age in Derby?

The median age in Derby is 41.8.

What is the age distribution of the population in Derby?

The age distribution in Derby is as follows:
  • Under 15: 27.3% (30 residents)
  • Ages 15-24: 6.4% (7 residents)
  • Ages 25-44: 25.4% (28 residents)
  • Ages 45-64: 14.6% (16 residents)
  • Over 65: 26.4% (29 residents)

What is the racial and ethnic makeup of Derby?

The racial and ethnic makeup of Derby is as follows:
  • White: 98.2% (108 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: 1.8% (2 residents)
  • Other: 0% (0 residents)

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

U.S.-born citizens represent 100% of the population in Derby.

How many housing units are there in Derby?

There are 50 housing units in Derby, reflecting a +6.4% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Derby has a total of 39 households, with an average of 3 people in each.

What is the median household income in Derby?

Derby has a median household income of $56,250, representing a -4.3% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Derby?

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

Job types:
  • White-collar workers: 34.9% (15 residents)
  • Blue-collar workers: 65.1% (28 residents)

Places of employment:
  • Self-employed: 27.9% (12 residents)
  • Private companies: 60.5% (26 residents)
  • Governmental workers: 11.6% (5 residents)
  • Not-for-profit companies: 0% (0 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