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Zip Code 70665 — Sulphur, LA

ZIP Code 70665 is associated with Sulphur, LA, in Calcasieu County. The listed population estimate is 13,222; estimated density is 33.4 people per square mile. Among records with population estimates, it ranks #5 of 13 in Calcasieu County and #123 of 524 in LA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (30.127560, -93.445550)

Data MetricLocal Statistic
Postal / Zip Code70665
Primary CitySulphur
State / ProvinceLA
CountyCalcasieu
Total Population13,222
Population Density33.4 people/sq mi
TimezoneAmerica/Chicago

How 70665 Compares

MetricZIP 70665Calcasieu County recordsLA records
Population estimate13,222187,517 (sum)4,611,457 (sum)
Population Density33.4 /sq mi----
County population rank#5 of 13----
State population rank#123 of 524----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in LA

ZIP CodeCityDistancePopulation estimate
ZIP 70668Vinton10.1 mi6,169
ZIP 70605Lake Charles10.2 mi40,482
ZIP 70663Sulphur10.8 mi27,799
ZIP 70645Hackberry11.7 mi899
ZIP 70669Westlake12.8 mi9,552

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 →