🇺🇸 United States ZIP Code

STANDARD

40312

Clay City

ZIP Code 40312 is a standard zip code serving Clay City, Clay City, Kentucky (KY), in Powell County, United States. It has an estimated population of 5,898 with a median household income of $19,464. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Kentucky (KY)
County: Powell
City: Clay City
Timezone: America/New_York

Coordinates

Latitude: 37.852400
Longitude: -83.930900

Geographic Details

Land Area: 56.76 mi²
Water Area: 0.60 mi²
Population Density: 104.0 people per mi² (50th percentile)
Bounding Box: 37.933898°N, 37.751948°S, -83.831832°E, -84.027370°W

With 5,898 residents spread across 56.76 square miles, this area has a population density of 104.0 people per square mile.

Demographics

5,898

Population

60th percentile

$19,464

Median Income

$68,600

Median Home Value

10th percentile

56.76 mi²

Land Area

The median household income in 40312 is $19,464, and the median home value is $68,600.

Housing

2,551

Total Units

2,262

Occupied Units

88.7%

Occupancy Rate

Similar ZIP Codes in Kentucky

ZIP codes with similar median household income in Kentucky.

41180

Webbville

$17,799

41174

South Portsmouth

$24,063

40828

Evarts

$23,476

41314

Booneville

$21,667

42634

Parkers Lake

$19,980

40211

Louisville

$23,790

40935

Flat Lick

$23,063

40508

Lexington

$20,412

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.