Darby, MT demographics:
population, income, and more

Total population
527
-8.3% year-over-year change
Median household income
$43,627/yr
6.6% year-over-year change
Housing units
332
-6.2% year-over-year change

Darby population

How many people live in Darby

Darby is home to 527 residents, according to the most recent Census data. Gender-wise, 49.9% of Darby locals are male, and 50.1% are female.

Total population
527
-8.3% year-over-year change
Gender ratio
Male
49.9%
263
Female
50.1%
264
Value Percent YoY change
Male 263 49.9% -18.6%
Female 264 50.1% 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 Darby is 57, with the population distributed as follows: about 6.3% are children under 15, then 3.8% are in the 15 to 24 age group. Adults between 25 and 44 make up 26.8% of the population, while another 37.6% fall into the 45 to 64 bracket. Finally, around 25.6% are 65 or older.

Median age
57.2
Age breakdown
Under 15
6.3%
15 to 24
3.8%
25 to 44
26.8%
45 to 64
37.6%
Over 65
25.6%
Value Percent YoY change
Under 15 33 6.3% -10.8%
15 to 24 20 3.8% -20.0%
25 to 44 141 26.8% -25.0%
45 to 64 198 37.6% -4.3%
Over 65 135 25.6% 14.4%
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 Darby, 97.7% of the population are US-born citizens, while 2.3% have gained naturalized citizenship. There’s also a share of 10.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
97.7%
Non-U.S.-born citizens
2.3%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 515 97.7% -8.4%
Non-U.S.-born citizens 12 2.3% -7.7%
Racial breakdown
White
89.4%
Black or African American
0.2%
American Indian and Alaska Native
0.4%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
10.1%
Other
0%
Value Percent
White 471 89.4%
Black or African American 1 0.2%
American Indian and Alaska Native 2 0.4%
Two or more races 53 10.1%

Households in Darby

A peek inside Darby households

Darby has 274 households, with an average of 2 members in each. Of these, 52.2% are families, while the remaining 47.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
274
-6.2% year-over-year change
Average people per household
2
Non-family households
131
Family households
143
Value Percent YoY change
Non-family households 131 47.8% 3.1%
Family households 143 52.2% -13.3%
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 Darby

The housing landscape of Darby

Darby's housing consists of 332 units, with 49.4% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 0.9% 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 29.8% of the housing landscape.

Housing units
332
-6.2% year-over-year change
Housing types
Value Percent
1 unit, detached 164 49.4%
1 unit, attached 3 0.9%
2 units 10 3%
3 or 4 units 40 12%
5 to 9 units 6 1.8%
10 to 19 units 4 1.2%
Mobile home 99 29.8%
Boat, RV, van, etc. 6 1.8%
Homes built since 2020
0
% year-over-year change

The age of buildings in Darby

In Darby, the median construction year is 1978. 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 44 13.2% -15.4%
Built between 1950 and 1959 7 2.1% -22.2%
Built between 1960 and 1969 69 20.8% 6.2%
Built between 1970 and 1979 61 18.4% -9.0%
Built between 1980 and 1989 30 9% -45.5%
Built between 1990 and 1999 58 17.5% 38.1%
Built between 2000 and 2009 47 14.2% 20.5%
Built between 2010 and 2019 16 4.8% -5.9%
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.

Darby occupancy rates

Out of the 274 occupied housing units in Darby, 44.9% are owner-occupied, while 55.1% are lived in by tenants. Meanwhile, 17.5% of all homes on the local market sit vacant.

Occupied housing units
274
-6.2% year-over-year change
Occupancy breakdown
Renter occupied
151
Owner occupied
123
Value Percent YoY
change
Renter occupied 151 55.1% -5.0%
Owner occupied 123 44.9% -7.5%
Unoccupied housing units
17.5%
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.

Darby housing costs

Housing costs in Darby come to a median of $900 per month, while tenants specifically pay a median gross rent of $889.

Median housing costs per month
$900/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 Darby
$889/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 Darby

Darby education at a glance

About 61.1% of the population in Darby went to high school, while 18.8% pursued college studies. Another 5.1% earned an associate degree and 6.7% hold a bachelor’s. Meanwhile, 7.7% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 3 0.6% -57.1%
High school diploma 302 61.1% -9.3%
College diploma 93 18.8% -2.1%
Associate degree 25 5.1% -24.2%
Bachelor's degree 33 6.7% -2.9%
Graduate degree 38 7.7% 46.1%
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 Darby

How much people earn in Darby

The average annual household income in Darby was $75,177 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -6% change from the previous year. At the same time, the median income stood at $43,627, reflecting a +6.6% shift over the same period.

Average household income in Darby
$75,177/year
-6.0% year-over-year change
Median household income in Darby
$43,627/year
6.6% year-over-year change

Darby income by age

In Darby, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $44,429. Overall, 86.5% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $44,429 5.2%
Over 65 $31,111 46.4%
Above poverty level
456
Below poverty level
71
Value Percent YoY
change
Above poverty level 456 86.5% -7.1%
Below poverty level 71 13.5% -15.5%

Employment in Darby

Workforce and job types in Darby

The job market in Darby is powered by 266 working residents, spread across a range of industries and roles. 71.4% of the working population are employed in professional or administrative positions, while 28.6% are in hands-on or service-based jobs. Also, 14.7% run their own businesses, 62.8% are employed by private companies, and 16.5% work in the public sector.

Workforce demographics

Working population
266
-7.3% year-over-year change
White collar
190
Blue collar
76
Value Percent YoY change
White collar 190 71.4% -3.1%
Blue collar 76 28.6% -16.5%
Employer type
Self employees
14.7%
Private companies
62.8%
Governmental workers
16.5%
Not for profit companies
6%
Value Percent YoY change
Self employees 39 14.7% -18.8%
Private companies 167 62.8% -7.7%
Governmental workers 44 16.5% -22.8%
Not for profit companies 16 6% 1,500.0%
Unemployment rate
1.5%
-60.0% year-over-year change

Available workforce

The unemployment rate in Darby stands at 1.5%, 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 Darby

How people get around in Darby

Commuting methods vary: 85.7% of residents travel by personal vehicle and 4.1% 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 228 85.7% -6.6%
Bus or trolleybus 1 0.4% 0.0%
Walk 11 4.1% -31.2%
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 Darby by zipcode?

Zipcode Population Number of households Median income Average income
59829 2,148 955 $63,650 $86,734

Explore more communities

FAQs about Darby demographics 

What is the total population of Darby?

Darby has a total population of 527 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 -8.3% compared to a year ago.

What is the gender ratio in Darby?

The gender ratio in Darby is as follows:
  • 49.9% males (263 residents)
  • 50.1% females (264 residents)

What is the median age in Darby?

The median age in Darby is 57.2.

What is the age distribution of the population in Darby?

The age distribution in Darby is as follows:
  • Under 15: 6.3% (33 residents)
  • Ages 15-24: 3.8% (20 residents)
  • Ages 25-44: 26.8% (141 residents)
  • Ages 45-64: 37.6% (198 residents)
  • Over 65: 25.6% (135 residents)

What is the racial and ethnic makeup of Darby?

The racial and ethnic makeup of Darby is as follows:
  • White: 89.4% (471 residents)
  • Black or African American: 0.2% (1 residents)
  • American Indian and Alaska Native: 0.4% (2 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 10.1% (53 residents)
  • Other: 0% (0 residents)

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

U.S.-born citizens represent 97.7% of the population in Darby.

How many housing units are there in Darby?

There are 332 housing units in Darby, reflecting a -6.2% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Darby has a total of 274 households, with an average of 2 people in each.

What is the median household income in Darby?

Darby has a median household income of $43,627, representing a +6.6% shift from the previous year, according to the U.S. Census Bureau.

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

The employment rate is 98.5% in Darby, with a workforce of 266 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 71.4% (190 residents)
  • Blue-collar workers: 28.6% (76 residents)

Places of employment:
  • Self-employed: 14.7% (39 residents)
  • Private companies: 62.8% (167 residents)
  • Governmental workers: 16.5% (44 residents)
  • Not-for-profit companies: 6% (16 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