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US ZIP Code Profile

ZIP Code 70757
Maringouin, Louisiana

ZIP code 70757 is in Maringouin, located in Iberville County, Louisiana, within the Baton Rouge metro area. Its 2020 Census population was 3,056. The estimated median adjusted gross income per tax return is $36,029, and about 3% of filers report $200,000 or more.

2020 Population
3,056
Census ZCTA
County
Iberville
FIPS 22047
Median income (est.)
$36,029
IRS SOI 2022
Land Area
49.044 mi²
+ 0.079 mi² water

01Location & Geography

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

Primary CityMaringouin, LA
CountyIberville County (FIPS 22047)
StateLouisiana (FIPS 22)
Metro Area (MSA)Baton Rouge, LA Metro Area (12940)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.489382, -91.519485
Land / Water Area49.044 mi² land · 0.079 mi² water

02Income & Economics

Distribution of the 1,280 individual tax returns filed in 70757 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
38.3%
$25K–$50K
26.6%
$50K–$75K
12.5%
$75K–$100K
7.8%
$100K–$200K
11.7%
$200K+
3.1%
The $200,000+ bracket accounts for 15% of 70757's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($36,029) 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 70757's IRS income metrics, 2020–2022.

Median income (2021→2022)
$36,029
▲ 14.0%
Filers earning $200K+
3.1%
▲ 0.9 pt
Total filers
1,280
▼ 4.5%
GET /zipc/v2/zipcodes/70757/soi?year=… $33K 2020 $32K 2021 $36K 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 70757 ZCTA.

2000
3,227
 
2010
3,177
▼ -1.5%
2020
3,056
▼ -3.8%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number215824
City AliasesMaringouin, Ramah

06Frequently Asked Questions

What county is ZIP code 70757 in?

ZIP code 70757 is in Iberville County, Louisiana (county FIPS code 22047).

What city is ZIP code 70757?

The primary USPS city for 70757 is Maringouin, LA.

What metro area (MSA) is 70757 in?

70757 is part of the Baton Rouge, LA Metro Area (MSA code 12940).

What is the population of ZIP code 70757?

The 2020 Census population of 70757 was 3,056 residents.

What is the median income in ZIP code 70757?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 70757 is about $36,029, with around 3% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.