Princeton ZIP Codes — Caldwell County, KY

There is one unique ZIP code in Princeton, Kentucky and it is 42445. Area code: 270/364.

ZIP codes

261.30

sq mi land

2.23

sq mi water

270/364

area code

Princeton, KY ZIP code map

About Princeton, KY

Princeton, Kentucky, is a charming city located in Caldwell County. Known for its rich history and friendly atmosphere, it offers a welcoming environment for both residents and visitors. The city is characterized by its small-town feel, surrounded by picturesque landscapes and a close-knit community.

Location & geography

Princeton is situated in southwestern Kentucky, approximately 20 miles from the larger city of Paducah. Nearby cities include Eddyville, about 15 miles to the northeast, Dawson Springs, roughly 18 miles to the west, and Marion, located about 14 miles to the southeast. The city covers a land area of 261.30 square miles, with a small water area of 2.23 square miles, featuring a mix of rural and suburban terrain.

Community & economy

Princeton boasts a vibrant community centered around agriculture and small businesses, contributing significantly to its local economy. Residents lead a relaxed and friendly lifestyle, often engaging in community events and local festivals that showcase the town's culture. The city's character reflects a blend of historical significance and modern amenities, making it an attractive place to live and visit.

Transportation

Highway 91 runs through Princeton, providing vital connectivity to nearby towns and cities. The nearest named airport is Barkley Regional Airport, located approximately 25 miles away in Paducah. Public transit options are limited, with most residents relying on personal vehicles for transportation.

History

Princeton was founded in the early 1800s and has a rich historical background that includes the development of agriculture as a key industry. The city has been home to several notable events through the years, including Civil War-related activities that reflect its strategic importance during that time. Today, its historical charm is preserved through various landmarks and local heritage sites.

Did you know?

One surprising fact about Princeton is that it is home to the annual Princeton Antique Show, which attracts enthusiasts from across the region. Additionally, the city features a historic courthouse that adds to its architectural significance.

ZIP codes for Princeton, KY (1)

ZIP code	City	County	Map
42445	Princeton	Caldwell	View map

Demographics & statistics

10,242

Population

44.9

Median age

$51,049

Median household income

$32,610

Per capita income

$102,100

Median home value

$701

Median monthly rent

69.5%

Home ownership

15.7%

Poverty rate

5.1%

Unemployment

3,622

Housing units

15.0%

Bachelor's or higher

Age distribution

Male Female

267

Under 5

276

346

5–9

357

327

10–14

338

294

15–19

304

198

20–24

205

547

25–34

566

543

35–44

561

638

45–54

659

283

55–59

292

474

60–64

490

639

65–74

660

274

75–84

283

207

85+

214

← Male

Female →

Age summary

Group	Count	%
Under 18	2,203	21.5%
18 and over	8,039	78.5%
65 and over	2,277	22.2%
Median age	44.9 years

Race & ethnicity

White 86.6%

Black or African American 7.2%

Two or more races 2.7%

Hispanic or Latino 1.8%

Other race 1.8%

Group	Count	%
White	9,031	86.6%
Black or African American	746	7.2%
Two or more races	282	2.7%
Hispanic or Latino	183	1.8%
Other race	183	1.8%

Household income

Under $10k 7.9%

$10k–$15k 4.3%

$15k–$25k 14.4%

$25k–$35k 9.7%

$35k–$50k 11.7%

$50k–$75k 19.8%

$75k–$100k 12.7%

$100k–$150k 9.0%

$150k–$200k 6.2%

$200k+ 4.2%

Range	% of households
Under $10k	7.9%
$10k–$15k	4.3%
$15k–$25k	14.4%
$25k–$35k	9.7%
$35k–$50k	11.7%
$50k–$75k	19.8%
$75k–$100k	12.7%
$100k–$150k	9.0%
$150k–$200k	6.2%
$200k+	4.2%
Median income	$51,049

Housing

Home values

Under $50k 21.1%

$50k–$100k 27.4%

$100k–$150k 22.9%

$150k–$200k 8.0%

$200k–$300k 9.6%

$300k–$500k 9.6%

$500k–$1M 0.2%

$1M+ 1.2%

Housing overview

Metric	Value
Median home value	$102,100
Median rent / month	$701
Owner occupied	69.5%
Renter occupied	30.5%
Vacant	12.8%
Single-family detached	76.9%
Large apartment buildings	2.7%
Mobile homes	10.6%
Median rooms	5.5
Avg household size (owned)	2.37

Year built

Era	%
2020 or later	0.9%
2010–2019	4.6%
2000–2009	13.6%
1990–1999	11.0%
1980–1989	5.9%
1970–1979	15.9%
1960–1969	11.4%
1950–1959	16.2%
1940–1949	8.9%
1939 or earlier	11.7%

Bedrooms

Size	% of units
No bedroom (studio)	2.6%
1 bedroom	5.8%
2 bedrooms	33.6%
3 bedrooms	46.4%
4 bedrooms	9.5%
5+ bedrooms	2.0%

Vehicles per household

Vehicles	% of households
No vehicle	9.2%
1 vehicle	29.1%
2 vehicles	37.8%
3 or more	23.9%

Heating fuel

Fuel type	%
Utility gas	44.4%
Electricity	36.2%
Propane / LP gas	17.3%
Wood	2.0%

Households & families

Household type	Count	%
Married-couple family	1,920	44.6%
Cohabiting couple	296	6.9%
Male householder, no spouse	673	15.6%
Female householder, no spouse	1,418	32.9%
Households with children under 18	1,206	28.0%
Households with seniors (65+)	1,599	37.1%
Average household size	2.34

Marital status

Status	Male	Female
Never married	26.4%	19.0%
Married	49.1%	48.8%
Separated	0.7%	1.9%
Widowed	3.4%	18.4%
Divorced	20.4%	11.9%

Education

Less than 9th grade 3.4%

Some HS, no diploma 11.2%

HS graduate 42.7%

Some college, no degree 19.9%

Associate's degree 7.8%

Bachelor's degree 7.5%

Graduate / professional 7.5%

Metric	%
HS diploma or higher	85.5%
Bachelor's or higher	15.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	114	5.7%
Kindergarten	204	10.2%
Elementary school	1,056	52.9%
High school	458	23.0%
College / grad school	163	8.2%

Employment

Industry of employment

Manufacturing 24.4%

Education & healthcare 19.2%

Professional & management 10.3%

Arts, food & hospitality 9.2%

Retail trade 9.0%

Agriculture & mining 7.3%

Public administration 6.1%

Construction 4.0%

Other services 3.3%

Wholesale trade 3.0%

Transportation & utilities 2.7%

Information 1.0%

Finance & real estate 0.5%

Occupation

Category	%
Management, business & arts	29.3%
Service	22.3%
Sales & office	12.1%
Natural resources & construction	11.7%
Production & transportation	24.7%

Employment type

Type	%
Private sector	77.5%
Government	16.0%
Self-employed	6.1%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	81.1%
Carpool	12.3%
Public transit	0.0%
Walk	0.0%
Other means	0.6%
Avg commute (minutes)	25.9

Poverty

All people 15.7%

Under 18 years 13.2%

18 and over 16.5%

Married-couple families 8.2%

Female-led households 29.4%

Income support

Source	% of households
Social Security	40.8%
Retirement income	29.8%
Supplemental Security	6.0%
Cash public assistance	1.0%
Food stamps / SNAP	17.0%

Health indicators

Condition	%
High blood pressure	44.6%
High cholesterol	39.2%
Heart disease	8.5%
Stroke	4.0%
Asthma	11.3%
Arthritis	35.1%
Kidney disease	3.5%
Pulmonary disease	11.5%
Cancer	7.5%

Behavior / access	%
Binge drinking	14.6%
No physical activity	32.7%
Less than 7 hrs sleep	37.6%
Fair or poor health	22.0%
Poor mental health	18.1%
Poor physical health	15.0%
No health insurance	10.8%
Visited doctor (checkup)	78.1%
Visited dentist	52.9%
Cholesterol screening	90.3%
Teeth loss	20.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	549	6.8%

Disability	%
Any disability	26.8%
Under 18	7.1%
18–64 years	21.2%
65 and over	61.0%

Health insurance coverage

Type	%
Private insurance	59.2%
Public insurance	46.7%
Uninsured under 19	2.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	9,699	94.7%
Spanish	13	0.1%
Other Indo-European	0	0.0%
Asian & Pacific Islander	13	0.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	9,977	97.4%
Born in same state	9,913	96.8%
Born in different state	7,511	73.3%
Foreign born	64	0.6%
Naturalized citizen	265	2.6%
Not a US citizen	71	26.8%

Ancestry

Ancestry	Count	%
French	1,742	17%
Arab	1,531	14.9%
Italian	626	6.1%
Irish	76	0.7%

Ancestry	Count	%
German	24	0.2%
Polish	17	0.2%
Dutch	8	0.1%

Technology access

Metric	% of households
Computer access	42.1%
Internet access	92.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Princeton, KY have?

Princeton, KY has one ZIP code: 42445. Each ZIP code serves a distinct delivery area within the city and surrounding region.