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Zip Code 73503 — Fort Sill, OK

73503 is a ZIP Code associated with Fort Sill, OK, located within Comanche. The postal region supports an estimated population of 11,468 residents across Data Pending housing units, with a population density of 59.7 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (34.673480, -98.496490)

Data Metric	Local Statistic
Postal / Zip Code	73503
Primary City	Fort Sill
State / Province	OK
County	Comanche
Total Population	11,468
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	59.7 people/sq mi
Timezone	America/Chicago

How 73503 Compares

Metric	ZIP 73503	Comanche County	OK State Average
Population	11,468	120,958	4,028,588
Median Income	Data Pending	N/A	N/A
Population Density	59.7 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 73557	Medicine Park	4.0 mi	261	N/A
Zip 73507	Lawton	5.2 mi	21,046	N/A
Zip 73505	Lawton	7.1 mi	47,790	N/A
Zip 73527	Cache	10.2 mi	5,109	N/A
Zip 73538	Elgin	11.7 mi	7,128	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →