Duncan, Greenlee County, AZ demographics:
population, income, and more

Total population
2,671
-13.5% year-over-year change
Median household income
$76,250/yr
19.3% year-over-year change
Housing units
1,198
-11.2% year-over-year change

Duncan population

How many people live in Duncan

Duncan is home to 2,671 residents, according to the most recent Census data. Gender-wise, 52.6% of Duncan locals are male, and 47.4% are female.

Total population
2,671
-13.5% year-over-year change
Gender ratio
Male
52.6%
1,405
Female
47.4%
1,267
Value Percent YoY change
Male 1,405 52.6% -7.5%
Female 1,267 47.4% -19.2%
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 Duncan is 44, with the population distributed as follows: about 16.1% are children under 15, then 13% are in the 15 to 24 age group. Adults between 25 and 44 make up 23.8% of the population, while another 28.1% fall into the 45 to 64 bracket. Finally, around 19% are 65 or older.

Median age
43.8
Age breakdown
Under 15
16.1%
15 to 24
13%
25 to 44
23.8%
45 to 64
28.1%
Over 65
19%
Value Percent YoY change
Under 15 430 16.1% -29.2%
15 to 24 348 13% 7.1%
25 to 44 635 23.8% -12.1%
45 to 64 750 28.1% -6.0%
Over 65 509 19% -20.0%
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 Duncan, 98.6% of the population are US-born citizens, while 1.1% have gained naturalized citizenship. At the same time, 0.3% of residents are non-citizens. There’s also a share of 21.7% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.6%
Non-U.S.-born citizens
1.1%
Non-citizens
0.3%
Value Percent YoY change
U.S.-born citizens 2,635 98.6% -13.2%
Non-U.S.-born citizens 29 1.1% -44.2%
Non-citizens 7 0.3% N/A
Racial breakdown
White
71.6%
Black or African American
0%
American Indian and Alaska Native
1.4%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
21.7%
Other
5.3%
Value Percent
White 1,913 71.6%
American Indian and Alaska Native 37 1.4%
Two or more races 580 21.7%
Other 141 5.3%

Households in Duncan

A peek inside Duncan households

Duncan has 1,018 households, with an average of 3 members in each. Of these, 59.4% are families, while the remaining 40.6% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,018
-8.4% year-over-year change
Average people per household
3
Non-family households
413
Family households
605
Value Percent YoY change
Non-family households 413 40.6% 20.4%
Family households 605 59.4% -21.3%
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 Duncan

The housing landscape of Duncan

Duncan's housing consists of 1,198 units, with 58.1% 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 28.5% of the housing landscape.

Housing units
1,198
-11.2% year-over-year change
Housing types
Value Percent
1 unit, detached 696 58.1%
3 or 4 units 106 8.8%
5 to 9 units 5 0.4%
20 to 49 units 12 1%
50 or more units 15 1.2%
Mobile home 341 28.5%
Boat, RV, van, etc. 23 1.9%
Homes built since 2020
19
26.7% year-over-year change

The age of buildings in Duncan

In Duncan, the median construction year is 1979. About 6.5% of homes were built before the 1940s, with another 10.4% going up by 1949. Most development happened in the second half of the 20th century. Then, 7.6% of homes were added from 2000 to 2009, 4.6% between 2010 and 2019, and 1.6% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 78 6.5% 0.0%
Built between 1940 and 1949 124 10.4% -3.1%
Built between 1950 and 1959 81 6.8% -22.1%
Built between 1960 and 1969 40 3.3% -37.5%
Built between 1970 and 1979 291 24.3% 15.5%
Built between 1980 and 1989 298 24.9% -22.6%
Built between 1990 and 1999 121 10.1% -44.5%
Built between 2000 and 2009 91 7.6% 54.2%
Built between 2010 and 2019 55 4.6% 19.6%
Built in 2020 or later 19 1.6% 26.7%
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.

Duncan occupancy rates

Out of the 1,018 occupied housing units in Duncan, 77.8% are owner-occupied, while 22.2% are lived in by tenants. Meanwhile, 15% of all homes on the local market sit vacant.

Occupied housing units
1,018
-8.4% year-over-year change
Occupancy breakdown
Renter occupied
226
Owner occupied
792
Value Percent YoY
change
Renter occupied 226 22.2% 0.9%
Owner occupied 792 77.8% -10.8%
Unoccupied housing units
15.0%
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.

Duncan housing costs

Housing costs in Duncan come to a median of $650 per month, while tenants specifically pay a median gross rent of $675.

Median housing costs per month
$650/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 Duncan
$675/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 Duncan

Duncan education at a glance

About 35.3% of the population in Duncan went to high school, while 31.8% pursued college studies. Another 7.1% earned an associate degree and 12.9% hold a bachelor’s. Meanwhile, 4.8% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 171 8.2% -1.2%
High school diploma 739 35.3% -14.3%
College diploma 665 31.8% -8.8%
Associate degree 148 7.1% -19.6%
Bachelor's degree 270 12.9% -8.8%
Graduate degree 101 4.8% 26.2%
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 Duncan

How much people earn in Duncan

The average annual household income in Duncan was $82,129 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +1% change from the previous year. At the same time, the median income stood at $76,250, reflecting a +19.3% shift over the same period.

Average household income in Duncan
$82,129/year
1.0% year-over-year change
Median household income in Duncan
$76,250/year
19.3% year-over-year change

Duncan income by age

In Duncan, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $78,269. Those with someone between 45 and 64 in charge, often well established professionally, earn $83,265 overall. Overall, 81.9% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $78,269 6.0%
45 - 64 $83,265 3.1%
Over 65 $50,000 16.5%
Above poverty level
2,183
Below poverty level
482
Value Percent YoY
change
Above poverty level 2,183 81.9% -15.8%
Below poverty level 482 18.1% -0.8%

Employment in Duncan

Workforce and job types in Duncan

62.7% of the working population are employed in professional or administrative positions, while 37.3% are in hands-on or service-based jobs. Also, 7% run their own businesses, 71% are employed by private companies, and 16.3% work in the public sector.

Workforce demographics

White collar
668
Blue collar
397
Value Percent YoY change
White collar 668 62.7% 2.0%
Blue collar 397 37.3% -12.0%
Employer type
Self employees
7%
Private companies
71%
Governmental workers
16.3%
Not for profit companies
5.7%
Value Percent YoY change
Self employees 74 7% 21.3%
Private companies 756 71% -6.1%
Governmental workers 174 16.3% 1.8%
Not for profit companies 61 5.7% -11.6%

Transportation in Duncan

How people get around in Duncan

In Duncan, the average commute time is 27 minutes. Commuting methods vary: 98.4% of residents travel by personal vehicle and 1.6% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
27 min
Means of transportation
Value Percent YoY change
Car 1,008 98.4% -5.2%
Walk 16 1.6% 45.5%
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.

Explore more communities

FAQs about Duncan demographics 

What is the total population of Duncan?

Duncan has a total population of 2,671 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 -13.5% compared to a year ago.

What is the gender ratio in Duncan?

The gender ratio in Duncan is as follows:
  • 52.6% males (1,405 residents)
  • 47.4% females (1,267 residents)

What is the median age in Duncan?

The median age in Duncan is 43.8.

What is the age distribution of the population in Duncan?

The age distribution in Duncan is as follows:
  • Under 15: 16.1% (430 residents)
  • Ages 15-24: 13% (348 residents)
  • Ages 25-44: 23.8% (635 residents)
  • Ages 45-64: 28.1% (750 residents)
  • Over 65: 19% (509 residents)

What is the racial and ethnic makeup of Duncan?

The racial and ethnic makeup of Duncan is as follows:
  • White: 71.6% (1,913 residents)
  • Black or African American: 0% ( residents)
  • American Indian and Alaska Native: 1.4% (37 residents)
  • Asian: 0% ( residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 21.7% (580 residents)
  • Other: 5.3% (141 residents)

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

U.S.-born citizens represent 98.6% of the population in Duncan.

How many housing units are there in Duncan?

There are 1,198 housing units in Duncan, reflecting a -11.2% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Duncan has a total of 1,018 households, with an average of 3 people in each.

What is the median household income in Duncan?

Duncan has a median household income of $76,250, representing a +19.3% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Duncan?

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

Job types:
  • White-collar workers: 62.7% (668 residents)
  • Blue-collar workers: 37.3% (397 residents)

Places of employment:
  • Self-employed: 7% (74 residents)
  • Private companies: 71% (756 residents)
  • Governmental workers: 16.3% (174 residents)
  • Not-for-profit companies: 5.7% (61 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