Cambridge, IA demographics:
population, income, and more

Total population
803
-15.3% year-over-year change
Median household income
$57,333/yr
-23.1% year-over-year change
Housing units
357
-11.8% year-over-year change

Cambridge population

How many people live in Cambridge

Cambridge is home to 803 residents, according to the most recent Census data. Gender-wise, 42.5% of Cambridge locals are male, and 57.5% are female.

Total population
803
-15.3% year-over-year change
Gender ratio
Male
42.5%
341
Female
57.5%
462
Value Percent YoY change
Male 341 42.5% -18.2%
Female 462 57.5% -13.0%
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 Cambridge is 40, with the population distributed as follows: about 24.2% are children under 15, then 7.5% are in the 15 to 24 age group. Adults between 25 and 44 make up 25% of the population, while another 33.4% fall into the 45 to 64 bracket. Finally, around 10% are 65 or older.

Median age
40.5
Age breakdown
Under 15
24.2%
15 to 24
7.5%
25 to 44
25%
45 to 64
33.4%
Over 65
10%
Value Percent YoY change
Under 15 194 24.2% -11.8%
15 to 24 60 7.5% -37.5%
25 to 44 201 25% -17.3%
45 to 64 268 33.4% -6.6%
Over 65 80 10% -21.6%
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 Cambridge, 91.7% of the population are US-born citizens, while 8% have gained naturalized citizenship. At the same time, 0.4% of residents are non-citizens. As for race, 90.4% of locals are Caucasian, 0.2% are African American and 0.1% have Asian roots. There’s also a share of 6.5% that includes residents with two or more races.

Citizenship
U.S.-born citizens
91.7%
Non-U.S.-born citizens
8%
Non-citizens
0.4%
Value Percent YoY change
U.S.-born citizens 736 91.7% -16.6%
Non-U.S.-born citizens 64 8% 4.9%
Non-citizens 3 0.4% -25.0%
Racial breakdown
White
90.4%
Black or African American
0.2%
American Indian and Alaska Native
0%
Asian
0.1%
Native Hawaiian and other Pacific Islander
0%
Two or more races
6.5%
Other
2.7%
Value Percent
White 726 90.4%
Black or African American 2 0.2%
Asian 1 0.1%
Two or more races 52 6.5%
Other 22 2.7%

Households in Cambridge

A peek inside Cambridge households

Cambridge has 330 households, with an average of 2 members in each. Of these, 50.9% are families, while the remaining 49.1% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
330
-12.5% year-over-year change
Average people per household
2
Non-family households
162
Family households
168
Value Percent YoY change
Non-family households 162 49.1% -7.4%
Family households 168 50.9% -16.8%
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 Cambridge

The housing landscape of Cambridge

Cambridge's housing consists of 357 units, with 81.5% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1.7% 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 2.2% of the housing landscape.

Housing units
357
-11.8% year-over-year change
Housing types
Value Percent
1 unit, detached 291 81.5%
1 unit, attached 6 1.7%
2 units 16 4.5%
3 or 4 units 22 6.2%
10 to 19 units 14 3.9%
Mobile home 8 2.2%
Homes built since 2020
0
% year-over-year change

The age of buildings in Cambridge

In Cambridge, the median construction year is 1965. About 38.9% of homes were built before the 1940s, with another 2.5% 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 139 38.9% -5.4%
Built between 1940 and 1949 9 2.5% -25.0%
Built between 1950 and 1959 7 2% -22.2%
Built between 1960 and 1969 50 14% -12.3%
Built between 1970 and 1979 68 19% -4.2%
Built between 1980 and 1989 13 3.6% -27.8%
Built between 1990 and 1999 41 11.5% -22.6%
Built between 2000 and 2009 18 5% -14.3%
Built between 2010 and 2019 12 3.4% -29.4%
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.

Cambridge occupancy rates

Out of the 330 occupied housing units in Cambridge, 83% are owner-occupied, while 17% are lived in by tenants. Meanwhile, 7.6% of all homes on the local market sit vacant.

Occupied housing units
330
-12.5% year-over-year change
Occupancy breakdown
Renter occupied
56
Owner occupied
274
Value Percent YoY
change
Renter occupied 56 17% -3.5%
Owner occupied 274 83% -14.1%
Unoccupied housing units
7.6%
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.

Cambridge housing costs

Housing costs in Cambridge come to a median of $1,059 per month, while tenants specifically pay a median gross rent of $1,043.

Median housing costs per month
$1,059/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 Cambridge
$1,043/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 Cambridge

Cambridge education at a glance

About 29.4% of the population in Cambridge went to high school, while 36.5% pursued college studies. Another 17.9% earned an associate degree and 11.6% hold a bachelor’s. Meanwhile, 3.2% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 8 1.4% 166.7%
High school diploma 172 29.4% -22.9%
College diploma 214 36.5% -7.4%
Associate degree 105 17.9% -3.7%
Bachelor's degree 68 11.6% -20.9%
Graduate degree 19 3.2% -32.1%
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 Cambridge

How much people earn in Cambridge

The average annual household income in Cambridge was $70,521 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -11.3% change from the previous year. At the same time, the median income stood at $57,333, reflecting a -23.1% shift over the same period.

Average household income in Cambridge
$70,521/year
-11.3% year-over-year change
Median household income in Cambridge
$57,333/year
-23.1% year-over-year change

Cambridge income by age

In Cambridge, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $90,313. Those with someone between 45 and 64 in charge, often well established professionally, earn $55,673 overall. Overall, 88.8% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $90,313 -16.4%
45 - 64 $55,673 N/A
Over 65 $36,500 -19.6%
Above poverty level
697
Below poverty level
88
Value Percent YoY
change
Above poverty level 697 88.8% -16.2%
Below poverty level 88 11.2% -9.3%

Employment in Cambridge

Workforce and job types in Cambridge

The job market in Cambridge is powered by 385 working residents, spread across a range of industries and roles. 67.3% of the working population are employed in professional or administrative positions, while 32.7% are in hands-on or service-based jobs. Also, 10.6% run their own businesses, 67.5% are employed by private companies, and 16.4% work in the public sector.

Workforce demographics

Working population
385
-23.9% year-over-year change
White collar
259
Blue collar
126
Value Percent YoY change
White collar 259 67.3% -29.6%
Blue collar 126 32.7% -8.7%
Employer type
Self employees
10.6%
Private companies
67.5%
Governmental workers
16.4%
Not for profit companies
5.4%
Value Percent YoY change
Self employees 41 10.6% -31.7%
Private companies 260 67.5% -16.9%
Governmental workers 63 16.4% -40.0%
Not for profit companies 21 5.4% -25.0%
Unemployment rate
5.2%
16.7% year-over-year change

Available workforce

The unemployment rate in Cambridge stands at 5.2%, 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 Cambridge

How people get around in Cambridge

Commuting methods vary: 90.4% of residents travel by personal vehicle and 1% 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 347 90.4% -24.7%
Bicycle 6 1.6% 0.0%
Walk 4 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 Cambridge by zipcode?

Zipcode Population Number of households Median income Average income
50046 1,554 650 $81,500 $101,968

Explore more communities

FAQs about Cambridge demographics 

What is the total population of Cambridge?

Cambridge has a total population of 803 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 -15.3% compared to a year ago.

What is the gender ratio in Cambridge?

The gender ratio in Cambridge is as follows:
  • 42.5% males (341 residents)
  • 57.5% females (462 residents)

What is the median age in Cambridge?

The median age in Cambridge is 40.5.

What is the age distribution of the population in Cambridge?

The age distribution in Cambridge is as follows:
  • Under 15: 24.2% (194 residents)
  • Ages 15-24: 7.5% (60 residents)
  • Ages 25-44: 25% (201 residents)
  • Ages 45-64: 33.4% (268 residents)
  • Over 65: 10% (80 residents)

What is the racial and ethnic makeup of Cambridge?

The racial and ethnic makeup of Cambridge is as follows:
  • White: 90.4% (726 residents)
  • Black or African American: 0.2% (2 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0.1% (1 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 6.5% (52 residents)
  • Other: 2.7% (22 residents)

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

U.S.-born citizens represent 91.7% of the population in Cambridge.

How many housing units are there in Cambridge?

There are 357 housing units in Cambridge, reflecting a -11.8% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Cambridge has a total of 330 households, with an average of 2 people in each.

What is the median household income in Cambridge?

Cambridge has a median household income of $57,333, representing a -23.1% shift from the previous year, according to the U.S. Census Bureau.

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

The employment rate is 94.8% in Cambridge, with a workforce of 385 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 67.3% (259 residents)
  • Blue-collar workers: 32.7% (126 residents)

Places of employment:
  • Self-employed: 10.6% (41 residents)
  • Private companies: 67.5% (260 residents)
  • Governmental workers: 16.4% (63 residents)
  • Not-for-profit companies: 5.4% (21 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