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US ZIP Code Profile

ZIP Code 70729
Erwinville, Louisiana

ZIP code 70729 is in Erwinville, located in West Baton Rouge County, Louisiana, within the Baton Rouge metro area. Its 2020 Census population was 967. The estimated median adjusted gross income per tax return is $52,083, and about 6% of filers report $200,000 or more.

2020 Population
967
Census ZCTA
County
West Baton Rouge
FIPS 22121
Median income (est.)
$52,083
IRS SOI 2022
Land Area
20.461 mi²
+ 1.623 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityErwinville, LA
CountyWest Baton Rouge County (FIPS 22121)
StateLouisiana (FIPS 22)
Metro Area (MSA)Baton Rouge, LA Metro Area (12940)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.587692, -91.34486
Land / Water Area20.461 mi² land · 1.623 mi² water

02Income & Economics

Distribution of the 510 individual tax returns filed in 70729 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
25.5%
$25K–$50K
23.5%
$50K–$75K
11.8%
$75K–$100K
9.8%
$100K–$200K
23.5%
$200K+
5.9%
The $200,000+ bracket accounts for 24% of 70729's total adjusted gross income, from 6% of returns — a concentration that drives the gap between the median ($52,083) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 70729's IRS income metrics, 2020–2022.

Median income (2021→2022)
$52,083
▲ 13.6%
Filers earning $200K+
5.9%
▲ 5.9 pt
Total filers
510
▲ 2.0%
GET /zipc/v2/zipcodes/70729/soi?year=… $45K 2020 $46K 2021 $52K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 70729 ZCTA.

2000
152
 
2010
1,032
▲ +578.9%
2020
967
▼ -6.3%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 70729. Powered by the same radius endpoint developers call from the API.

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ZIP codes within range of 70729

Erwinville and its immediate neighbors, sorted by distance.

3 mi
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Distance from 70729 to any ZIP

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06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number212808
City AliasesErwinville, Bueche

07Frequently Asked Questions

What county is ZIP code 70729 in?

ZIP code 70729 is in West Baton Rouge County, Louisiana (county FIPS code 22121).

What city is ZIP code 70729?

The primary USPS city for 70729 is Erwinville, LA.

What metro area (MSA) is 70729 in?

70729 is part of the Baton Rouge, LA Metro Area (MSA code 12940).

What is the population of ZIP code 70729?

The 2020 Census population of 70729 was 967 residents.

What is the median income in ZIP code 70729?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 70729 is about $52,083, with around 6% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.