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AIRPORT

Castle AirportKMER / MER

Castle Airport serves Merced, California, United States. Its ICAO code is KMER and its IATA code MER. The longest of its one runway is 13/31, at 11,802 ft (3,597 m). The field is 191 ft (58 m) above sea level. Local time is America/Los Angeles, UTC-8, or UTC-7 with daylight saving.

Published by Overfly · Airport data: OurAirports, · Last updated

ICAO
KMER
IATA
MER
LONGEST RUNWAY
11,802 ft
3,597 m · 13/31
ELEVATION
191 ft
58 m
TIME ZONE
UTC-8
America/Los_Angeles
POSITION
37.381°N
120.568°W

Runways

13/3111,802 ft · 3,597 mPEM

Nearest airports

Questions people ask about Castle Airport

How long is the runway at Castle Airport?

The longest runway, 13/31, is 11,802 ft (3,597 m), surface PEM.

What is the elevation of Castle Airport?

191 ft (58 m) above mean sea level.

What time zone is Castle Airport in?

America/Los Angeles: UTC-8, or UTC-7 with daylight saving.

What are the codes for Castle Airport?

ICAO KMER, IATA MER. It serves Merced, United States.

How far can you fly from Merced?
Open the mapper with a 7,300 nm range ring around KMER, then pick your own aircraft, add a route and check every leg.
Open KMER in the mapper

For reference and planning interest. Not for operational flight planning. Runway and elevation data from OurAirports; check current charts and NOTAMs before any flight. © 2026 Overfly.Flights