ZIP code · Newcastle · Oklahoma · United States

ZIP code 73065 — Newcastle

ZIP code 73065 serves Newcastle, Oklahoma.

Postal code
73065
Single source Value from one source, not cross-checked.
City
Newcastle
County
McClain FIPS 40087
State
Oklahoma
Country
United States
Coordinates
35.2453, -97.6216 — precision precise (locality)
View on OpenStreetMap
Population
11,136 (ZCTA, ACS 5-year)
Population density
215 / sq mi
Land area
51.8 sq mi (134.2 km²) (ZCTA, ACS 5-year)
Median household income
$93,451
Per-capita income
$41,483
Median age
39.7
Households
4,269
Housing units
4,413
Median home value
$240,400
Median gross rent
$990 / month
Congressional district
OK-4 (119th Congress)
USDA hardiness zone
7b (5 to 10 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Chicago (UTC−6 / UTC−5 DST)
Area code
405
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Aug (avg high 93°F), coldest Jan (avg low 29°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F515564727988939384746251
Avg low °F293241495968727163513931

NOAA 1991–2020 climate normals from the nearest station: NORMAN 2NW MESONET (8.9 mi) · NOAA NCEI

Places in ZIP 73065

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page