ZIP Code Tabulation Area · Kentucky

ZIP Code 40923: Knox County, KY

ZIP Code 40923 (Knox County, Kentucky) has an estimated 679 residents in 243 households. The median household income is $47,865, the median home value is $165,000 and the median gross rent is —. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Some estimates have a large margin of error. 6 figures for this ZIP (population, household income, poverty rate, owner-occupied, commute, work from home) are marked with *. ACS figures come from a sample, and small areas have fewer responses, so treat these numbers as rough ranges.

Total population

679*

Margin of error ±392· estimate has a large margin of error

Median household income

$47,865*

Margin of error ±$40,337· estimate has a large margin of error

Median home value

$165,000

Margin of error ±$67,169

Median gross rent

—

Margin of error not available

Median age

42.4 yrs

Margin of error ±13.7 yrs

Mean travel time to work

15.1 min*

Margin of error ±19.8 min· estimate has a large margin of error

How ZIP 40923 compares with Kentucky and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 4092342.4 yrsKentucky39.1 yrsUnited States38.9 yrs

Median household income

ZIP 40923$47,865*Kentucky$63,726United States$80,734

Per capita income

ZIP 40923$14,476Kentucky$35,821United States$44,673

Poverty rate

ZIP 4092333.7%*Kentucky16.1%United States12.5%

Unemployment rate

ZIP 409230.0%Kentucky4.9%United States5.2%

Bachelor's degree or higher

ZIP 4092311.3%Kentucky27.6%United States35.7%

Median home value

ZIP 40923$165,000Kentucky$205,600United States$332,700

Median gross rent

ZIP 40923—Kentucky$967/moUnited States$1,413/mo

Owner-occupied homes

ZIP 4092367.9%*Kentucky68.3%United States65.2%

Mean travel time to work

ZIP 4092315.1 min*Kentucky24.0 minUnited States26.4 min

Worked from home

ZIP 4092317.3%*Kentucky10.2%United States15.1%

All figures for ZIP 40923

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 40923 — ACS 2020–2024 5-year estimates
Measure	ZIP 40923	Margin of error	Kentucky	United States
Total population	679*	±392	4,534,824	334,922,499
Median age	42.4 yrs	±13.7 yrs	39.1 yrs	38.9 yrs
Households	243	±106	1,814,469	129,227,496
Median household income	$47,865*	±$40,337	$63,726	$80,734
Per capita income	$14,476	±$6,438	$35,821	$44,673
Poverty rate	33.7%*	±11.0 pts	16.1%	12.5%
Unemployment rate	0.0%	±6.4 pts	4.9%	5.2%
Bachelor's degree or higher	11.3%	±9.4 pts	27.6%	35.7%
Median home value	$165,000	±$67,169	$205,600	$332,700
Median gross rent	—	—	$967/mo	$1,413/mo
Owner-occupied homes	67.9%*	±24.2 pts	68.3%	65.2%
Mean travel time to work	15.1 min*	±19.8 min	24.0 min	26.4 min
Worked from home	17.3%*	±25.0 pts	10.2%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 40923
Group	ZIP 40923	Kentucky	United States
White alone, not Hispanic or Latino	98.7%	81.5%	57.4%
Black or African American alone, not Hispanic or Latino	0.0%	7.6%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	0.0%	0.1%	0.5%
Asian alone, not Hispanic or Latino	0.0%	1.6%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.1%	0.2%
Some other race alone, not Hispanic or Latino	0.0%	0.3%	0.6%
Two or more races, not Hispanic or Latino	0.0%	3.9%	4.3%
Hispanic or Latino (of any race)	1.3%	5.0%	19.3%

Where ZIP 40923 is

State: Kentucky
Main county: Knox County
Land area: 5.45 sq mi· about 125 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Knox County

40734 Knox County, KY 40771 Knox County, KY 40903 Knox County, KY 40906 Knox County, KY 40915 Knox County, KY 40921 Knox County, KY 40935 Knox County, KY 40943 Knox County, KY 40949 Knox County, KY 40953 Knox County, KY 40982 Knox County, KY 40995 Knox County, KY 40997 Knox County, KY

See every ZIP code in Kentucky, or compare ZIP 40923 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.