PlainZIP

Gray, KY · standard

ZIP Code 40734

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

3,764
36/sq mi
$42,500
Median income
$131,700
Median home value
7.7%
Bachelor's or higher

The verdict

Gray pairs one of the lowest household incomes in the country with among the most affordable home values nationally, in a rural, homeowner-dominated area.

7th pct
household income, US ZIPs
20th pct
home value, US ZIPs
36
people per sq mi
77%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 40734 against every reporting US ZIP.

ZIP code 40734 covers 105.4 square miles in Gray, Knox County, Kentucky (a standard USPS delivery area), with a modest 3,764 residents on file, a density of 36 people per square mile, in the New York time zone.

ZIP 40734 reports a modest median household income of $42,500 (29% below the Kentucky average), while per-capita income is $19,428. 32.6% of residents live below the poverty line, and the unemployment rate reads 6.7%. The typical home here is valued at $131,700 (17% below the state average); renters pay a median of $697 monthly, and 76.5% of units are owner-occupied.

Formal educational attainment runs low here: just 7.7% of adults hold a bachelor's degree or higher, the median age is 42.3, and the average commute is -. A geography-based comparison follows: 9 ZIP codes within about 10 miles of 40734, plus 6 more within Knox County, give a clearer read than the 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 40734

Top 5 sectors by establishment count in Gray, KY

Which industries have the most business establishments in ZIP 40734.

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 40734, Gray, 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

3,764

Population

105.4

Area (sq mi)

36

People / sq mi

New York

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 40734?

42.3

Median Age

59.1%

Male

40.9%

Female

0.0%

Foreign-Born

White 97.7%
African American 0.6%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 1.7%
Hispanic or Latino 0.2%

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?

$42,500

Median Household Income

-29% vs state

$19,428

Per Capita Income

32.6%

Poverty Rate

6.7%

Unemployment Rate

How ZIP 40734 ranks nationally

Gray, KY household income vs. every US ZIP code

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

$42,500 7th percentile higher than 7% 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%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $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 46.7%
Bachelor's Degree or Higher 7.7%

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

What does housing look like?

1,521

Total Housing Units

1,300

Occupied Units

221

Vacant Units

2.75

Avg Household Size

Occupancy Type

Owner 76.5%
Renter 23.5%

$131,700

Median Home Value

-17% vs state

$697

Median Rent

1988

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 27 business establishments in ZIP 40734, employing approximately 611 people with a combined annual payroll of $32,032,000.

27

Businesses

611

Employees

$32.0M

Annual Payroll

4

Industry Sectors

Industry Establishments % of Total
Manufacturing 6 22.2%
Health care and social assistance 6 22.2%
Other services (except public administration) 4 14.8%
Retail trade 3 11.1%

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 40734 vs 40923 →

ZIP 40734 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 40734 ranks #3 by population - useful context the national average alone can't give.

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

ZIP 40734 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 40734 ranks #6 of 8 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
40923 Cannon, KY 735 6.6 mi
40906 Barbourville, KY 11,132 5.6 mi
40949 Heidrick, KY 788 6.0 mi
40771 Woodbine, KY 1,068 6.0 mi
40943 Girdler, KY 748 6.4 mi
40740 Lily, KY 3,321 7.2 mi
40759 Rockholds, KY 2,531 9.0 mi
40744 London, KY 18,334 10.2 mi
40743 London, KY 229 13.0 mi

More ZIP Codes in Knox County

40906 standard
Barbourville, KY
Pop: 11,132
40935 standard
Flat Lick, KY
Pop: 2,699
40771 standard
Woodbine, KY
Pop: 1,068
40953 standard
Hinkle, KY
Pop: 998
40915 standard
Bimble, KY
Pop: 896
40949 standard
Heidrick, KY
Pop: 788

Related Areas

Knox County Gray, KY Kentucky

Frequently Asked Questions

What county is ZIP code 40734 in? ▼
ZIP code 40734 (Gray) is located in Knox County, Kentucky. Knox County contains multiple ZIP codes, see the full list at /counties/knox-ky.
What is the population of ZIP code 40734? ▼
ZIP code 40734 in Gray, KY has a population of 3,764 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 40734? ▼
The median household income in ZIP 40734 is $42,500, which is 44% below the national average of $76,288.
What is the average home value in ZIP 40734? ▼
The median home value in ZIP 40734 is $131,700, which is 53% below the national average of $278,155.
What is the demographic makeup of ZIP 40734? ▼
The largest racial group in ZIP 40734 is White at 97.7%. Hispanic or Latino residents make up 0.2% of the population.
How many businesses are in ZIP code 40734? ▼
ZIP code 40734 has 27 business establishments employing approximately 611 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 40734? ▼
The top industries by establishment count in ZIP 40734 are: Manufacturing (6), Health care and social assistance (6), Other services (except public administration) (4). There are 4 industry sectors represented in total.
What is the education level in ZIP code 40734? ▼
In ZIP code 40734, 46.7% of residents aged 25+ have a high school diploma or higher, and 7.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 40734? ▼
In ZIP code 40734, approximately 76.5% of occupied housing units are owner-occupied and 23.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 40734? ▼
The poverty rate in ZIP code 40734 is 32.6% 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.