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 Moderate-density area
- $42,500
- Median income Below-median income area
- $131,700
- Median home value Below-median home value
- 7.7%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
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 average Kentucky ZIP), while per-capita income is $19,428. The poverty rate is 32.6%, so the area-level income figures should not be treated as typical household experience. Home values sit below the statewide ZIP benchmark: the median is $131,700 (17% below the average Kentucky ZIP), and median rent is $697; owner occupancy is 76.5%.
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 -. The page also surfaces 9 ZIP codes within roughly 10 miles and 6 more in Knox County, so 40734 can be compared with both its immediate and county-level context.
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.
- Manufacturing
Manufacturing
6 establishments
- Health care and social assistance
Health care and social assistance
6 establishments
- Other services (except public administration)
Other services (except public administration)
4 establishments
- Retail trade
Retail trade
3 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, 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
Who lives in ZIP 40734?
42.3
Median Age
59.1%
Male
40.9%
Female
0.0%
Foreign-Born
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 ZIP avg
$19,428
Per Capita Income
32.6%
Poverty Rate
6.7%
Unemployment Rate
How ZIP 40734 ranks among Kentucky ZIPs
Gray, KY household income vs. every Kentucky ZIP code
Median household income among 646 reporting Kentucky ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$42,500 22nd percentile higher than 22% of 646 Kentucky ZIPs
Each bar is a $20K-wide band; taller bars hold more Kentucky 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
1,521housing units
1,521
Total Housing Units
1,300
Occupied Units
221
Vacant Units
2.75
Avg Household Size
Occupancy Type
$131,700
Median Home Value
-17% vs state ZIP avg
$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.
- 40744
London (40744)
18,334 residents
- 40906
Barbourville (40906)
11,132 residents
- 40734 3,764
Gray (40734)
3,764 residents
- 40740 3,321
Lily (40740)
3,321 residents
- 40759 2,531
Rockholds (40759)
2,531 residents
- 40771 1,068
Woodbine (40771)
1,068 residents
- 40949 788
Heidrick (40949)
788 residents
- 40943 748
Girdler (40943)
748 residents
- 40923 735
Cannon (40923)
735 residents
What this shows Among its immediate neighbors, ZIP 40734 ranks #3 by population - useful context the national average alone can't give.
ZIP 40734 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 40943
Girdler (40943)
$67,143 median income
- 40744
London (40744)
$64,369 median income
- 40740
Lily (40740)
$63,701 median income
- 40949
Heidrick (40949)
$54,688 median income
- 40923
Cannon (40923)
$47,865 median income
- 40734
Gray (40734)
$42,500 median income
- 40759
Rockholds (40759)
$34,909 median income
- 40906 $23,375
Barbourville (40906)
$23,375 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 40734, both outside KY so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (3,764 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Knox County
Related Areas
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.
Related
Take this with you
What to do with ZIP 40734's numbers, next.
- See how ZIP 40734 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Gray, KY ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.