Duncan is a town located in Spartanburg County South Carolina. Duncan has a 2024 population of 4,553. Duncan is currently growing at a rate of 2.75% annually and its population has increased by 12% since the most recent census, which recorded a population of 4,065 in 2020.
The average household income in Duncan is $71,800 with a poverty rate of 17.09%. The median age in Duncan is 30.9 years: 30.4 years for males, and 32.3 years for females.
According to the most recent ACS, the racial composition of Duncan was:
Race | Population | Percentage (of total) |
|---|---|---|
| White | 2,335 | 55.93% |
| Black or African American | 1,695 | 40.6% |
| Two or more races | 97 | 2.32% |
| Other race | 48 | 1.15% |
| Native American | 0 | 0% |
| Asian | 0 | 0% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
White
Black or African American
Two or more races
Other race
Native American
Asian
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 1,676 | 2.47 | 52.6 | 47.4 |
| Non Family | 613 | 1.03 | 62.2 | 37.8 |
| Married | 556 | 3.25 | 49.3 | 50.7 |
| Female | 408 | 3.33 | 51 | 49 |
| Male | 99 | 3.56 | 18.2 | 81.8 |
2.98
Average Family Size
2.47
Average Household Size
52.6%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 309 | 11.06% |
| Associates Degree | 168 | 6.01% |
| Bachelors Degree | 810 | 28.98% |
| Graduate Degree | 139 | 4.97% |
| High School Graduate | 747 | 26.73% |
| Less Than 9th Grade | 136 | 4.87% |
| Some College | 486 | 17.39% |
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 1,413 | 1,120 | 225 |
| Black | 1,101 | 1,038 | 585 |
| Hispanic | 198 | 141 | 99 |
| 2+ Races | 97 | 65 | 12 |
| Other Race | 44 | 40 | 40 |
The highest rate of high school graduation is among black people with a rate of 94.28%.
The highest rate of bachelors degrees is among other race people with a rate of 90.91%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $0 | $0 | $75,055 |
| Graduate Degree | $60,585 | $0 | $61,190 |
| High School Graduate | $36,653 | $38,689 | $21,514 |
| Less Than 9th Grade | $46,250 | $46,569 | $0 |
| Overall | $39,658 | $41,236 | $36,169 |
| Some College | $34,484 | $63,065 | $33,315 |
$39,658
Average Earnings
$41,236
Average Male
$36,169
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
90.59% of Duncan residents speak only English, while 9.41% speak other languages. The non-English language spoken by the largest group is Other languages, which is spoken by 7.79% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| Black | 1,689 | 540 | 31.97% |
| White | 2,008 | 139 | 6.92% |
| Other | 44 | 22 | 50% |
| Hispanic | 322 | 4 | 1.24% |
17.09%
Overall Poverty Rate
19.14%
Male Poverty Rate
15.12%
Female Poverty Rate
The race most likely to be in poverty in Duncan is Other, with 50% below the poverty level.
The race least likely to be in poverty in Duncan is Hispanic, with 1.24% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 5.25%. Among those working part-time, it was 10.91%, and for those that did not work, the poverty rate was 47.35%.
rate
Rate | Poverty |
|---|---|
| Bachelors or Greater | 39.52% |
| Less Than 9th Grade | 17.98% |
| High School | 4.82% |
| Some College | 3.06% |
rate
Rate | Poverty |
|---|---|
| Female Employed | 9.49% |
| Male Employed | 1.17% |
| Male Unemployed | 0% |
| Female Unemployed | 0% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $69,239 | $75,338 |
| Households | $51,596 | $71,800 |
| Married Families | $69,431 | $-999,999,999 |
| Non Families | $34,102 | $63,726 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
39.4%
Overall Marriage Rate
34.7%
Male Marriage Rate
43.7%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 45-54.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
133
Number of Veterans
133
Male Veterans
0
Female Veterans
War | Veterans |
|---|---|
| Vietnam | 68 |
| Second Gulf War | 65 |
| First Gulf War | 0 |
| Korea | 0 |
| World War II | 0 |
count
Age Group | Veterans |
|---|---|
| 65 to 74 | 68 |
| 35 to 54 | 65 |
| 18 to 34 | 0 |
| 55 to 64 | 0 |
| 75+ | 0 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 133 | 8.4% |
| Hispanic | 55 | 27.78% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
7.52%
Veteran Poverty Rate
51.13%
Veteran Disability Rate
LaborForceParticipation
65.6%
Labor Force Participation
63.5%
Employment Rate
3.3%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
64.31%
Born in Duncan
92.91%
Native Born
7.09%
Foreign Born
4.17%
Non Citizen
2.92%
Naturalized
92.91% of Duncan residents were born in the United States, with 64.31% having been born in South Carolina. 4.17% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Africa.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 5,163 | 122 | 2.42% |
| 2028 | 5,041 | 122 | 2.48% |
| 2027 | 4,919 | 122 | 2.54% |
| 2026 | 4,797 | 122 | 2.61% |
| 2025 | 4,675 | 122 | 2.68% |
| 2024 | 4,553 | 122 | 2.75% |
| 2023 | 4,431 | 144 | 3.36% |
| 2022 | 4,287 | 136 | 3.28% |
| 2021 | 4,151 | 86 | 2.12% |
| 2020 | 4,065 | 426 | 11.71% |
| 2019 | 3,639 | 76 | 2.13% |
| 2018 | 3,563 | 96 | 2.77% |
| 2017 | 3,467 | 71 | 2.09% |
| 2016 | 3,396 | 53 | 1.59% |
| 2015 | 3,343 | 46 | 1.4% |
| 2014 | 3,297 | 34 | 1.04% |
| 2013 | 3,263 | 28 | 0.87% |
| 2012 | 3,235 | 28 | 0.87% |
| 2011 | 3,207 | 15 | 0.47% |
| 2010 | 3,192 | 0 | 0% |
| 2000 | 2,870 | -2,293 | -44.41% |