Get API Key →
US ZIP Code Profile

ZIP Code 70740
Grosse Tete, Louisiana

ZIP code 70740 is in Grosse Tete, located in Iberville County, Louisiana, within the Baton Rouge metro area. Its 2020 Census population was 1,181. The estimated median adjusted gross income per tax return is $48,077.

2020 Population
1,181
Census ZCTA
County
Iberville
FIPS 22047
Median income (est.)
$48,077
IRS SOI 2022
Land Area
87.035 mi²
+ 0.92 mi² water

01Location & Geography

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

Primary CityGrosse Tete, 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
Coordinates30.310057, -91.439766
Land / Water Area87.035 mi² land · 0.92 mi² water

02Income & Economics

Distribution of the 540 individual tax returns filed in 70740 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
27.8%
$25K–$50K
24.1%
$50K–$75K
14.8%
$75K–$100K
11.1%
$100K–$200K
22.2%
$200K+
0.0%
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 70740's IRS income metrics, 2020–2022.

Median income (2021→2022)
$48,077
▲ 4.2%
Filers earning $200K+
0.0%
▲ 0.0 pt
Total filers
540
▼ 3.6%
GET /zipc/v2/zipcodes/70740/soi?year=… $42K 2020 $46K 2021 $48K 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 70740 ZCTA.

2000
1,311
 
2010
1,305
▼ -0.5%
2020
1,181
▼ -9.5%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number213874
City AliasesGrosse Tete

06Frequently Asked Questions

What county is ZIP code 70740 in?

ZIP code 70740 is in Iberville County, Louisiana (county FIPS code 22047).

What city is ZIP code 70740?

The primary USPS city for 70740 is Grosse Tete, LA.

What metro area (MSA) is 70740 in?

70740 is part of the Baton Rouge, LA Metro Area (MSA code 12940).

What is the population of ZIP code 70740?

The 2020 Census population of 70740 was 1,181 residents.

What is the median income in ZIP code 70740?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 70740 is about $48,077. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.