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Zip Code 70663 — Sulphur, LA

ZIP Code 70663 is associated with Sulphur, LA, in Calcasieu County. The listed population estimate is 27,799; estimated density is 109.8 people per square mile. Among records with population estimates, it ranks #3 of 13 in Calcasieu County and #47 of 524 in LA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (30.277200, -93.390860)

Data MetricLocal Statistic
Postal / Zip Code70663
Primary CitySulphur
State / ProvinceLA
CountyCalcasieu
Total Population27,799
Population Density109.8 people/sq mi
TimezoneAmerica/Chicago

How 70663 Compares

MetricZIP 70663Calcasieu County recordsLA records
Population estimate27,799187,517 (sum)4,611,457 (sum)
Population Density109.8 /sq mi----
County population rank#3 of 13----
State population rank#47 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 70669Westlake7.2 mi9,552
ZIP 70633Dequincy10.4 mi8,486
ZIP 70629Lake Charles10.8 miN/A
ZIP 70665Sulphur10.8 mi13,222
ZIP 70601Lake Charles11.1 mi30,872

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 →