Home values, rents and more in ZIP code 42259 (Mammoth Cave, KY)
September 2026 figures from Zillow and the U.S. Census Bureau · updated 2026-11-07
Open 42259 in ProMap- Under $160k
- $160k–$180k
- $180k–$200k
- $200k–$220k
- $220k+
- No data
How 42259 compares
The typical home in ZIP code 42259 (Mammoth Cave, KY) is worth about $115,000, according to the Zillow Home Value Index for September 2026. Home values in 42259 are 55% below the typical value in the Bowling Green metro area ($258,000) and 69% below the U.S. typical value ($366,000).
Over the past year, home values in 42259 fell 1.9%, compared with −0.4% in the Bowling Green metro area and +1.2% nationally.
The median household income is $33,566, against $63,328 in the Bowling Green metro area and $80,734 in the U.S. (Census Bureau, American Community Survey 2020–24).
About 1,090 people live in 42259 (American Community Survey 2020–24).
42259 has the lowest typical home value of the 18 ZIP codes in the Bowling Green metro area and the 144th-lowest of 598 in Kentucky with Zillow figures.
Part of: Edmonson County, KY · Bowling Green metro area · Kentucky
More for 42259 in ProMap Plus
These measures are on the map for subscribers. Open ProMap to see them for 42259 and every other place.
- 5- and 10-year price changes
- Days on market and months of supply
- Price cuts and sale-to-list ratio
- Price-to-income and monthly cost to buy
- Zillow 12-month price forecast
- Crime rates
- School test scores
- Homeowners insurance premiums
- Commute time to downtown
- Flood, wildfire and natural hazard risk
- Property-tax rate
- 2024 presidential vote
- Age, education and household make-up
- Amenities and transit nearby
Nearby ZIP codes
Sources
Home values: Zillow Home Value Index (ZHVI), all homes, middle tier, smoothed and seasonally adjusted, September 2026. Rents: Zillow Observed Rent Index (ZORI), seasonally adjusted. Population: Census population estimates (July 2025) for states, metros and counties; ACS 2020–24 for cities and ZIP codes. Income: U.S. Census Bureau, ACS 2020–24 5-year estimates. Boundaries: U.S. Census Bureau cartographic boundary files. Compiled by Home Economics.
"Typical" is Zillow's middle-tier value (homes between the 35th and 65th percentiles), not a median sale price. Changes are over the 12 months to September 2026.