PlainZIP

Smiths Grove, KY · standard

ZIP Code 42171

Warren County, Kentucky - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

6,841
26/sq mi
$70,191
Median income
$187,500
Median home value
12.3%
Bachelor's or higher

The verdict

Smiths Grove pairs a below-median household income with below-median home values, in a rural, homeowner-dominated area.

47th pct
household income, US ZIPs
40th pct
home value, US ZIPs
26
people per sq mi
76%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 42171 against every reporting US ZIP.

ZIP code 42171 is a mid-sized community (a standard USPS delivery area) in Smiths Grove, Warren County, Kentucky, home to 6,841 residents across 263.1 square miles, a density of 26 people per square mile, in the Chicago time zone.

ZIP 42171 lands in the middle-income range, with a median household income of $70,191 (18% above the Kentucky average), while per-capita income is $32,853. 10.6% of residents live below the poverty line, and the unemployment rate reads 4.3%. On housing, the median home value is $187,500 (18% above the state average) with median rent at $1,008 per month, and 76.2% of occupied units are owner-occupied.

Formal educational attainment runs low here: just 12.3% of adults hold a bachelor's degree or higher, the median age is 41.3, and the average commute is 30 minutes. We also surface 3 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Warren County, so you can benchmark 42171 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 42171

Top 5 sectors by establishment count in Smiths Grove, KY

Which industries have the most business establishments in ZIP 42171.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 42171, Smiths Grove, KY · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

6,841

Population

263.1

Area (sq mi)

26

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 42171?

41.3

Median Age

49.9%

Male

50.1%

Female

1.5%

Foreign-Born

White 91.9%
African American 2.5%
Asian 0.0%
American Indian or Alaska Native 0.2%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 4.9%
Hispanic or Latino 2.9%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$70,191

Median Household Income

+18% vs state

$32,853

Per Capita Income

10.6%

Poverty Rate

4.3%

Unemployment Rate

29.9 min

Mean Commute Time

How ZIP 42171 ranks nationally

Smiths Grove, KY household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$70,191 47th percentile higher than 47% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 55.8%
Bachelor's Degree or Higher 12.3%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

2,843

Total Housing Units

2,631

Occupied Units

212

Vacant Units

2.56

Avg Household Size

Occupancy Type

Owner 76.2%
Renter 23.8%

$187,500

Median Home Value

+18% vs state

$1,008

Median Rent

1994

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+3.9%

YoY Change (2024)

218

HPI Index (2000 = 100)

+118%

Total Change Since 2000

Home values in ZIP 42171 have increased 3.9% over the past year (2024). Since 2000, this ZIP has seen +118% cumulative appreciation.

Year Annual Change HPI Index
2020 -0.1% 140
2021 +15.7% 162
2022 +19.4% 194
2023 +8.5% 210
2024 +3.9% 218

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 86 business establishments in ZIP 42171, employing approximately 500 people with a combined annual payroll of $17,016,000.

86

Businesses

500

Employees

$17.0M

Annual Payroll

8

Industry Sectors

Industry Establishments % of Total
Retail trade 20 23.3%
Construction 12 13.9%
Professional, scientific, and technical services 10 11.6%
Health care and social assistance 10 11.6%
Accommodation and food services 10 11.6%
Transportation and warehousing 6 7.0%
Other services (except public administration) 6 7.0%
Administrative and support and waste management and remediation services 3 3.5%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 42171 vs 42163 →

ZIP 42171 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 42171 ranks the most populous - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 42171 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 42171 ranks the highest of 3 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
42163 Rocky Hill, KY 56 3.5 mi
42159 Oakland, KY 1,195 5.2 mi
42160 Park City, KY 1,992 5.8 mi

More ZIP Codes in Warren County

42101 standard
Bowling Green, KY
Pop: 55,648
42104 standard
Bowling Green, KY
Pop: 29,610
42103 standard
Bowling Green, KY
Pop: 18,936
42122 standard
Alvaton, KY
Pop: 4,368
42274 standard
Rockfield, KY
Pop: 2,373
42170 standard
Woodburn, KY
Pop: 1,403

Related Areas

Warren County Smiths Grove, KY Kentucky

Frequently Asked Questions

What county is ZIP code 42171 in? ▼
ZIP code 42171 (Smiths Grove) is located in Warren County, Kentucky. Warren County contains multiple ZIP codes, see the full list at /counties/warren-ky.
What is the population of ZIP code 42171? ▼
ZIP code 42171 in Smiths Grove, KY has a population of 6,841 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 42171? ▼
The median household income in ZIP 42171 is $70,191, which is 8% below the national average of $76,288.
What is the average home value in ZIP 42171? ▼
The median home value in ZIP 42171 is $187,500, which is 33% below the national average of $278,155.
What is the demographic makeup of ZIP 42171? ▼
The largest racial group in ZIP 42171 is White at 91.9%. Hispanic or Latino residents make up 2.9% of the population.
How many businesses are in ZIP code 42171? ▼
ZIP code 42171 has 86 business establishments employing approximately 500 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 42171? ▼
The top industries by establishment count in ZIP 42171 are: Retail trade (20), Construction (12), Professional, scientific, and technical services (10). There are 8 industry sectors represented in total.
How have home values changed in ZIP code 42171? ▼
According to the FHFA House Price Index, home values in ZIP 42171 increased by 3.9% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 118%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 42171? ▼
In ZIP code 42171, 55.8% of residents aged 25+ have a high school diploma or higher, and 12.3% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 42171? ▼
The mean commute time for workers in ZIP code 42171 is 29.9 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 42171? ▼
In ZIP code 42171, approximately 76.2% of occupied housing units are owner-occupied and 23.8% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 42171? ▼
The poverty rate in ZIP code 42171 is 10.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.