Get API Key →
US ZIP Code Profile

ZIP Code 70764
Plaquemine, Louisiana

ZIP code 70764 is in Plaquemine, located in Iberville County, Louisiana, within the Baton Rouge metro area. Its 2020 Census population was 15,616. The estimated median adjusted gross income per tax return is $40,679, and about 5% of filers report $200,000 or more.

2020 Population
15,616
Census ZCTA
County
Iberville
FIPS 22047
Median income (est.)
$40,679
IRS SOI 2022
Land Area
157.553 mi²
+ 10.01 mi² water

01Location & Geography

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

Primary CityPlaquemine, 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
Coordinates30.216866, -91.282776
Land / Water Area157.553 mi² land · 10.01 mi² water

02Income & Economics

Distribution of the 6,630 individual tax returns filed in 70764 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
33.6%
$25K–$50K
26.1%
$50K–$75K
14.0%
$75K–$100K
7.5%
$100K–$200K
14.2%
$200K+
4.5%
The $200,000+ bracket accounts for 25% of 70764's total adjusted gross income, from 5% of returns — a concentration that drives the gap between the median ($40,679) 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 70764's IRS income metrics, 2020–2022.

Median income (2021→2022)
$40,679
▲ 7.8%
Filers earning $200K+
4.5%
▲ 0.8 pt
Total filers
6,630
▼ 2.4%
GET /zipc/v2/zipcodes/70764/soi?year=… $35K 2020 $38K 2021 $41K 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 70764 ZCTA.

2000
17,817
 
2010
17,584
▼ -1.3%
2020
15,616
▼ -11.2%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number217085
City AliasesPlaquemine

06Frequently Asked Questions

What county is ZIP code 70764 in?

ZIP code 70764 is in Iberville County, Louisiana (county FIPS code 22047).

What city is ZIP code 70764?

The primary USPS city for 70764 is Plaquemine, LA.

What metro area (MSA) is 70764 in?

70764 is part of the Baton Rouge, LA Metro Area (MSA code 12940).

What is the population of ZIP code 70764?

The 2020 Census population of 70764 was 15,616 residents.

What is the median income in ZIP code 70764?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 70764 is about $40,679, with around 5% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.