County ZIP codes · Louisiana · FIPS 22063

Livingston Parish, LA ZIP Codes

Livingston Parish, Louisiana has 16 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 15 residential and 1 for PO boxes or a single organization. 10 of the residential ones lie mainly in Livingston Parish and 5 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $50,976 in 70403 (Hammond) to $102,422 in 70774 (Saint Amant) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

70403 · $51k 70774 · $102k

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $57,464 and $89,103.

They carry 14 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 15 residential ZIP codes in Livingston Parish

10 ZIP codes lie mainly in Livingston Parish; 5 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Livingston Parish, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
70726	Denham Springs	63,575	721	$79k	$228k	100%
70785	Walker	23,921	256	$89k	$245k	100%
70706	Denham Springs	21,833	413	$91k	$253k	73%
70754	Livingston	11,641	91	$56k	$170k	100%
70744	Holden	6,070	59	$61k	$167k	85%
70711	Albany	5,612	305	$94k	$230k	100%
70462	Springfield	5,593	70	$68k	$229k	99%
70449	Maurepas	3,092	53	$78k	$239k	100%
70733	French Settlement	1,715	154	$75k	$229k	100%
70786	Watson	no residents	0	–	–	100%

Partly in Livingston Parish

Residential ZIP codes mainly in another county that reach at least 1% into Livingston Parish, by their share here
						In this county
70443	Independence	9,006	118	$58k	$164k	33%
70774	Saint Amant	10,041	191	$102k	$256k	19%
70403	Hammond	30,173	713	$51k	$212k	14%
70453	Pine Grove	1,162	31	$61k	$93k	6%
70466	Tickfaw	10,148	296	$66k	$167k	5%

Download the 16 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

8 ZIP codes of Livingston Parish extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Livingston Parish and in the neighboring counties
ZIP	In Livingston	Elsewhere
70403	14%	Tangipahoa Parish 86%
70706	73%	St. Helena Parish 27%
70466	5%	Tangipahoa Parish 95%
70774	19%	Ascension Parish 81%
70443	33%	Tangipahoa Parish 57%; St. Helena Parish 10%
70744	85%	St. Helena Parish 15%
70462	99%
70453	6%	St. Helena Parish 94%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Livingston Parish without a residential area (GeoNames postal codes)
ZIP	Postal name
70727	Denham Springs

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Livingston Parish's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Livingston Parish's ZIP codes use 2 prefixes: 704 and 707.

Three-digit prefixes of Livingston Parish's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Livingston Parish's
Prefix	Sectional center	Here	All codes
704	New Orleans, LA (SCF 700)	6	47
707	Baton Rouge, LA (SCF 707)	10	67

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.

Where are the ZIP codes of Livingston Parish?