County hub suburban Louisiana

Calcasieu County, LA

Aggregated demographic, housing, and geographic context for the 14 ZIP codes inside Calcasieu County, drawn from public Census ACS and SimpleMaps data.

ZIP codes
14
in this county
Total population
190,585
across all listed ZIPs
Cities
8
distinct city/town names
Avg density
1,527
people / sq mi
Avg median income
household, ACS
Avg home value
owner-occupied

ZIP codes in Calcasieu County

ZIPCityPopulationDensityMedian income
70605 Lake Charles 40,835 367
70601 Lake Charles 34,365 823
70663 Sulphur 30,810 122
70611 Lake Charles 20,448 97
70615 Lake Charles 13,805 116
70665 Sulphur 12,475 32
70647 Iowa 11,439 25
70669 Westlake 9,457 125
70633 Dequincy 8,046 17
70668 Vinton 6,556 18
70661 Starks 1,532 3
70609 Lake Charles 421 18,094
70646 Hayes 396 16
70629 Lake Charles

About Calcasieu County

Counties are the workhorse unit of American local government — they administer property taxes, run the courts and sheriff’s office, manage many road and library systems, and in much of the country they collect public health and zoning data that ZIP codes don’t. Calcasieu County in Louisiana contains roughly 14 ZIP codes spread across 8 distinct cities and unincorporated communities, with an aggregate population of about 190,585. Reading those ZIPs together at the county level smooths over neighborhood-by-neighborhood noise and surfaces the broader economic and demographic shape of the area. For block-level detail, drill into any individual ZIP profile or compare against the wider Louisiana index.

The average density across listed ZIPs sits at roughly 1,527, which classifies the county overall as a suburban environment. That label is a generalization — nearly every county contains both a relatively dense core and quieter outlying ZIPs, and the gap between them is often what determines where you actually want to live or open a business. Average median household income in our enriched ZIPs lands near —, with average owner-occupied home values around —; both numbers move dramatically as you cross from one ZIP to the next, so use the table above as a sorting tool, not a verdict.

If you’re moving into Calcasieu County, the county itself is also where most of your real-life paperwork will land — vehicle registration, voter registration, property recording, and school district enrollment in many states. Knowing the county that contains your prospective ZIP makes it much easier to look up the right tax assessor, election office, or school district website. Our relocation guide walks through the order in which to tackle these handoffs after a move.

For service-area planning, the county is also where most US business licensing and many sales-tax rules are administered. Service businesses scoping Calcasieu County should pair this aggregate view with the individual ZIP profiles to identify the densest, highest-income pockets first, then expand outward along whatever transportation corridor matches their delivery model.