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US ZIP Code Profile

ZIP Code 70577
Port Barre, Louisiana

ZIP code 70577 is in Port Barre, located in Saint Landry County, Louisiana, within the Opelousas metro area. Its 2020 Census population was 4,424. The estimated median adjusted gross income per tax return is $38,802, and about 2% of filers report $200,000 or more.

2020 Population
4,424
Census ZCTA
County
Saint Landry
FIPS 22097
Median income (est.)
$38,802
IRS SOI 2022
Land Area
59.981 mi²
+ 1.303 mi² water

01Location & Geography

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

Primary CityPort Barre, LA
CountySaint Landry County (FIPS 22097)
StateLouisiana (FIPS 22)
Metro Area (MSA)Opelousas, LA Micro Area (36660)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.551695, -91.94098
Land / Water Area59.981 mi² land · 1.303 mi² water

02Income & Economics

Distribution of the 1,950 individual tax returns filed in 70577 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
36.4%
$25K–$50K
24.6%
$50K–$75K
13.3%
$75K–$100K
9.7%
$100K–$200K
13.9%
$200K+
2.1%
The $200,000+ bracket accounts for 14% of 70577's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($38,802) 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 70577's IRS income metrics, 2020–2022.

Median income (2021→2022)
$38,802
▲ 7.9%
Filers earning $200K+
2.1%
▲ 0.5 pt
Total filers
1,950
▼ 2.0%
GET /zipc/v2/zipcodes/70577/soi?year=… $36K 2020 $36K 2021 $39K 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 70577 ZCTA.

2000
4,590
 
2010
4,645
▲ +1.2%
2020
4,424
▼ -4.8%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number217215
City AliasesPort Barre

06Frequently Asked Questions

What county is ZIP code 70577 in?

ZIP code 70577 is in Saint Landry County, Louisiana (county FIPS code 22097).

What city is ZIP code 70577?

The primary USPS city for 70577 is Port Barre, LA.

What metro area (MSA) is 70577 in?

70577 is part of the Opelousas, LA Micro Area (MSA code 36660).

What is the population of ZIP code 70577?

The 2020 Census population of 70577 was 4,424 residents.

What is the median income in ZIP code 70577?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 70577 is about $38,802, with around 2% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.