Corydon vs Promise City

A side-by-side comparison of Corydon and Promise City: population, income, housing, and more.

Corydon and Promise City are places in Iowa. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Corydon has the higher population (1,566 vs 86 in Promise City). Corydon has the higher median household income ($48,988 vs $41,406 in Promise City). Corydon has the higher median home value ($88,800 vs $52,800 in Promise City).

Population, income & housing

	Corydon	Promise City
Population	1,566	86
Median age	42.4 yrs	54.5 yrs
Median household income	$48,988	$41,406
Median home value	$88,800	$52,800
Median gross rent	$738	—
Housing units	736	53
Homeownership rate	61.8%	86.0%
Bachelor's degree or higher	18.8%	7.5%
Unemployment rate	3.7%	0.0%

Trends (ACS 5-year, 2019–2023)

	Corydon	Promise City
Population	1,628 → 1,566 (-3.8%)	78 → 86 (+10.3%)
Median household income	$48,229 → $48,988 (+1.6%)	$20,938 → $41,406 (+97.8%)
Median home value	$78,700 → $88,800 (+12.8%)	$46,700 → $52,800 (+13.1%)
Median gross rent	$613 → $738 (+20.4%)	—

Corydon

Population

1,6281,566

Median household income

$48,229$48,988

Median home value

$78,700$88,800

Median gross rent

$613$738

Promise City

Population

7886

Median household income

$20,938$41,406

Median home value

$46,700$52,800

Age & race/ethnicity

Age distribution (share)

	Corydon	Promise City
Under 5	6.3%	7.0%
5 to 17	17.8%	15.1%
18 to 24	5.4%	0.0%
25 to 34	12.6%	16.3%
35 to 44	12.0%	0.0%
45 to 54	9.3%	11.6%
55 to 64	13.2%	23.3%
65 to 74	10.2%	9.3%
75 and over	13.2%	17.4%

Race & ethnicity (share)

	Corydon	Promise City
White (non-Hispanic)	91.0%	98.8%
Black or African American	1.5%	0.0%
American Indian & Alaska Native	0.0%	0.0%
Asian	1.8%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	3.6%	1.2%
Hispanic or Latino	2.1%	0.0%

Educational attainment (age 25+)

Share of adults 25+

	Corydon	Promise City
No high school diploma	7.2%	13.4%
High school graduate	40.9%	52.2%
Some college or associate's	33.1%	26.9%
Bachelor's degree	13.0%	7.5%
Graduate or professional degree	5.7%	0.0%

Commute to work

How workers get to work (share)

	Corydon	Promise City
Drove alone	86.5%	96.7%
Carpooled	4.0%	3.3%
Public transit	0.3%	0.0%
Walked	3.3%	0.0%
Bicycle	0.0%	0.0%
Worked from home	4.2%	0.0%
Other means	1.7%	0.0%

Housing

Units in structure (share)

	Corydon	Promise City
1-unit, detached	75.8%	96.2%
1-unit, attached	0.0%	0.0%
2 to 4 units	18.2%	0.0%
5 to 19 units	0.5%	0.0%
20 or more units	0.5%	0.0%
Mobile home & other	4.9%	3.8%

Poverty & households

	Corydon	Promise City
Poverty rate	15.5%	19.8%
Average household size	2.21	2.00
Mean commute (minutes)	15	31
Median year structure built	1962	1949