US ZIP Code
42728

Columbia, KY

Adair County  ·  Kentucky

● Active
👥 16,108 Population ↓ 3% since 2019
💰 $49,063 Median HH Income
▼ 36% below avg ↑ 28% since 2019
🎂 40.2 Median Age ↓ 2% since 2019
🏠 $134,100 Median Home Value
▼ 52% below avg ↑ 36% since 2019
🎓 32.8% College Grads
▼ 15% below avg
📊 7.8% Unemployment
▲ 59% above avg ↑ 34% since 2019
ZIP Code Details
ZIP Code42728
CityColumbia
StateKentucky (KY)
CountyAdair County
Area Code270/364
Elevation848 ft
Latitude37.117031
Longitude-85.29007
TimezoneNew York (DST)
FIPS21001
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.7% (8,002) Female 50.3% (8,106) ♀

Race & Ethnicity

White: 90.1%Hispanic: 3.5%Black: 2.1%Asian: 0.3%Other: 3.6%Race
White90.1%
Hispanic3.5%
Black2.1%
Asian0.3%
Other3.6%

Age Breakdown

Under 5
5%
5–17
14%
18–24
14%
25–44
22%
45–64
26%
65+
9%

Key Indicators

Median Age40.2 yrs ↓ 2% since 2019
Avg Household Size2.44
Below Poverty15.8% ▲ 58% above avg
College Grads32.8% ▼ 15% below avg
Unemployment7.8% ▲ 59% above avg
No HS Diploma189 (2%)
HS Graduate3,509 (37.1%)
Some College1,719 (18.2%)
Associates942 (10%)
Bachelors1,095 (11.6%)
Graduate Degree2,004 (21.2%)

Education

No HS: 2%HS Grad: 37.1%Some College: 18.2%Associates: 10%Bachelors: 11.6%Graduate: 21.2%Edu
No HS2.0%
HS Grad37.1%
Some College18.2%
Associates10.0%
Bachelors11.6%
Graduate21.2%
Housing & Income

Housing Tenure

Owner: 74.5%Renter: 25.5%Tenure
Owner74.5%
Renter25.5%

Home Value Distribution

Under $50k
11%
$50k–100k
24%
$100k–150k
21%
$150k–200k
16%
$200k–300k
17%
$300k–500k
12%
Over $500k
1%

Financials

Median HH Income$49,063 ▼ 36% below avg ↑ 28% since 2019
Median Home Value$134,100 ▼ 52% below avg ↑ 36% since 2019
Home/Income Ratio2.7x (nat avg ~3.5x)
Median Rent$776/mo ↑ 40% since 2019
Total Units7,510
Vacant Units1,410
Avg HH Size2.44

Income Distribution

Under $25k
31%
$25k–50k
17%
$50k–75k
21%
$75k–100k
12%
$100k–150k
14%
$150k–200k
3%
Over $200k
2%
Employment & Commute

How People Get to Work

Drove Alone
85%
Walked
3%
Work From Home
12%

Commute Time

Under 15 min
41%
15–30 min
30%
30–45 min
15%
Over 45 min
15%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
10%
1960s–1970s
14%
1980s–1990s
17%
2000+
57%

Summary

Total Units7,510
Vacant1,410
Owner Occupied74.5%
Renter Occupied25.5%
Avg HH Size2.44
Frequently Asked Questions
ZIP code 42728 is in Columbia, KY, in Adair County.
ZIP code 42728 is located in Kentucky (KY).
ZIP code 42728 is in Adair County, KY.
ZIP 42728 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 42728 is 16,108 people (ACS 2023).
The median household income in ZIP code 42728 is $49,063 (ACS 2023).
The median home value in ZIP 42728 is $134,100 (ACS 2023).
About ZIP Code 42728

ZIP code 42728 is located in Columbia, Kentucky, within Adair County. With a population of 16,108, this is a moderately populated ZIP code with a middle-aged community — the median age is 40.2 years. Economically, 42728 is a working-class ZIP code: the median household income of $49,063 is below the national average.

Real estate in ZIP code 42728 represents one of the more affordable housing markets in the country. The median home value of $134,100 is well below the national average. Renters can expect to pay around $776 per month in median rent. Homeownership is strong here — 74.5% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 36% since 2019.

The population of 42728 is primarily White (90.07%). Residents are moderately educated — 32.8% hold a bachelor's degree or higher, which is below the national average. Poverty affects some residents at 15.8%. Household income has grown by 28% since 2019.

The unemployment rate in 42728 stands at 7.8%, which is significantly above the national average. About 11% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 75%.

Overall, ZIP code 42728 in Columbia, KY is characterized as working-class, moderately educated, a middle-aged community, and predominantly owner-occupied. With 16,108 residents, a median household income of $49,063, and a median home value of $134,100, it offers a clear picture of life in this part of Kentucky.