Columbia, LA ZIP Codes
One ZIP code serves Columbia, Louisiana: 71418. Together they are home to 5,233 residents in 2,039 households. That is more than the 345 people counted inside Columbia town limits, because these ZIP codes reach past its boundary.
Columbia town limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 345 |
| Households | 148 |
| Median household income | $55,000 |
| Median home value | $123,800 |
| Median age | 31.6 |
| Median rent | $872 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 5,233 |
| Households (sum of ZIP codes) | 2,039 |
| Median household income, range across ZIP codes | $40,785 (71418) to $40,785 (71418) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $40,785 |
| Homeowners | 66.7% |
| Households with kids under 18 | 34.0% |
| Moved in the past year | 5.7% |
| Carrier routes in EDDM2GO's route library | 6 routes, 2,464 homes (1 of 1 ZIP codes) |
Every ZIP code in Columbia
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 71418 | Columbia | 5,233 | 2,039 | $40,785 | $91,500 | 66.7% | 34.0% | 5.7% | 6 | 2,569 | 0% of its land; mailing city |
A ZIP code is listed for Columbia when at least 10% of its land lies inside Columbia town limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Columbia. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Columbia.
Counties
- Caldwell County — 4 ZIP codes
Price a mailing to Columbia ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Columbia, LA?
- 71418. A ZIP code is listed for Columbia when at least 10% of its land lies inside Columbia town limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Columbia.
- What is the population of Columbia, LA?
- The Census Bureau counts 345 residents inside Columbia town limits (ACS 2020–2024). The 1 ZIP code that serve Columbia hold 5,233 residents in all.
- What is the median household income in Columbia, LA?
- $55,000 inside Columbia town limits, per the Census Bureau. Across its ZIP codes the medians run from $40,785 to $40,785.
- How many carrier routes and mailboxes are in Columbia, LA?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 6 carrier routes reaching 2,464 residential and 104 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.