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US ZIP Code Profile

ZIP Code 70450
Mount Hermon, Louisiana

ZIP code 70450 is in Mount Hermon, located in Washington County, Louisiana, within the Bogalusa metro area. Its 2020 Census population was 2,778. The estimated median adjusted gross income per tax return is $38,000.

2020 Population
2,778
Census ZCTA
County
Washington
FIPS 22117
Median income (est.)
$38,000
IRS SOI 2022
Land Area
74.391 mi²
+ 0.253 mi² water

01Location & Geography

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

Primary CityMount Hermon, LA
CountyWashington County (FIPS 22117)
StateLouisiana (FIPS 22)
Metro Area (MSA)Bogalusa, LA Micro Area (14220)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.928745, -90.266754
Land / Water Area74.391 mi² land · 0.253 mi² water

02Income & Economics

Distribution of the 980 individual tax returns filed in 70450 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
36.7%
$25K–$50K
25.5%
$50K–$75K
15.3%
$75K–$100K
9.2%
$100K–$200K
13.3%
$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 70450's IRS income metrics, 2020–2022.

Median income (2021→2022)
$38,000
▲ 17.3%
Filers earning $200K+
0.0%
▼ 2.0 pt
Total filers
980
▼ 3.9%
GET /zipc/v2/zipcodes/70450/soi?year=… $32K 2020 $32K 2021 $38K 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 70450 ZCTA.

2000
2,264
 
2010
2,884
▲ +27.4%
2020
2,778
▼ -3.7%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number216370
City AliasesMount Hermon

06Frequently Asked Questions

What county is ZIP code 70450 in?

ZIP code 70450 is in Washington County, Louisiana (county FIPS code 22117).

What city is ZIP code 70450?

The primary USPS city for 70450 is Mount Hermon, LA.

What metro area (MSA) is 70450 in?

70450 is part of the Bogalusa, LA Micro Area (MSA code 14220).

What is the population of ZIP code 70450?

The 2020 Census population of 70450 was 2,778 residents.

What is the median income in ZIP code 70450?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 70450 is about $38,000. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.