Skip to content
ZipNumbers
Grid of numbered green mailboxes in an apartment lobby, illustrating ZIP code listings

St. Tammany Parish · Louisiana

ZIP code 70431

Population, income, housing costs and the sales tax rate charged on purchases inside ZIP 70431 — Census 2019-2023 ACS 5-year, no modelled estimates.
Population
5,150

ZCTA residents

Median income
$56,156

Household, past 12 months

Median home
$241,600

Owner-occupied value

Sales tax
5%

Louisiana state rate

Quick answer

ZIP 70431 sits in St. Tammany Parish, Louisiana and is home to 5,150 people. Median household income is $56,156, the median home is worth $241,600 and median gross rent is $1,327. 92.6% of households own their home, and purchases are taxed at 5% (Louisiana state rate).

County
St. Tammany Parish

FIPS 22103

State
Louisiana (LA)

539 ZIPs covered

Area codes
Not published

No NANPA match for this ZIP

Metro area
Outside covered metros

Rate jurisdiction used for tax

The numbers for 70431

American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.

Population
5,150ZIP 70431 residents
Median household income
$56,156Past 12 months, inflation adjusted
Median home value
$241,600Owner-occupied units
Median gross rent
$1,327Rent plus utilities, monthly
Median age
44.7 yrsAll residents
Homeownership rate
92.6%Owner-occupied households

ZIP 70431 in context

How this area compares with national benchmarks.

ZIP 70431 is a mid-size town in St. Tammany Parish, Louisiana, with 5,150 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #221 of 539 ranked by population — larger than 59% of them. The median age here is 44.7 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in ZIP 70431 earn a median of $56,156 a year, 28.5% below the national figure of $78,538. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 22.2% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in ZIP 70431 is valued at $241,600, 20.4% below the national figure, while median gross rent runs $1,327 a month, 5.6% below the national figure, or roughly $15,924 across a full year. A household on the local median income would put about 28.4% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 4.3×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 92.6% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Reading ZIP 70431 in context

How 70431 sits inside St. Tammany Parish and Louisiana.

ZIP 70431 is tabulated inside St. Tammany Parish, Louisiana, one of 16 ZIP areas the Census publishes for that county and 539 across Louisiana. Population sits in the small-town band, typically one main street plus the addresses that feed into it. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 70431 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 70431 reports a median household income of $56,156, 22% below the $72,180 county median, and 3% above the $54,720 typical LA ZIP. Owner-occupied homes are valued at a median of $241,600, 11% below the county figure and 57% above the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $1,327 a month, which is why it reads higher than the advertised rent on a listing for the same unit.

Louisiana charges 5% statewide, and local governments overlapping 70431 may add county, city or special-district levies on top. We publish the state floor for this ZIP rather than guessing a combined figure, because ZIP boundaries and taxing-district boundaries were drawn for different purposes and do not line up.

Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 70431 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.

Sales tax in 70431

What a purchase inside this ZIP costs at checkout.

Rate applied
5%State base rate only
Tax on $100
$5Rounded to the dollar
Tax on $1,000
$50Before any exemptions

Louisiana levies 5% statewide, and counties, cities and special districts inside this ZIP can add their own local rate on top. Check the county page for the local component before you quote a price.

Affordability in this ZIP

Derived from the Census medians above — indicative, not an offer.

Rent burden
28%Median rent ÷ median income
Price-to-income
4.3×Home value ÷ household income
Est. mortgage
$1,254/mo20% down, 30-yr at 6.75%
Poverty rate
22.2%Residents below poverty line

A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.

How 70431 compares

ZIP 70431 against the median ZIP in St. Tammany Parish and across Louisiana.

MeasureZIP 70431County medianState medianvs state
Median household income$56,156$72,180$54,720+3%
Median home value$241,600$271,600$154,300+57%
Median gross rent$1,327$1,231$887+50%
Population5,15015,3823,279+57%

Medians are computed across the 16 ZIP areas in St. Tammany Parish and the 539 ZIP areas in Louisiana.

Statewide rank

Where this ZIP places among all 539 Louisiana ZIP areas.

Income

richer than 52% of 463 state ZIPs

#222
Home value

above 84% of 456 state ZIPs

#75
Population

larger than 59% of 539 state ZIPs

#221

Comparable ZIP codes

Louisiana ZIP areas with almost the same household income.

ZIPCountyIncomeHome valueRent
70342St. Mary Parish$56,146$190,600$492
71046De Soto Parish$56,250$76,700$780
70444Tangipahoa Parish$56,277$173,300$805
70390Assumption Parish$56,353$152,000$823
70072Jefferson Parish$55,866$190,700$1,091
70815East Baton Rouge Parish$55,804$213,100$984

Nearby ZIP codes

Other ZIP codes filed under St. Tammany Parish.

Adjacent ZIP Codes

Other ZIP codes in St. Tammany Parish, Louisiana.

ZIP 70431 questions

Common questions about this ZIP code.

Where is ZIP code 70431?
ZIP 70431 lies mostly in St. Tammany Parish, Louisiana. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
What sales tax do I pay in 70431?
Louisiana charges 5% statewide, plus any county, city or district rate that applies locally.
Is 70431 expensive to live in?
Median rent runs $1,327 a month, about 28% of median household income, and the median home is worth $241,600 — +57% against the typical Louisiana ZIP.
Is a ZCTA the same as a postal ZIP code?
Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.

Related pages for this area.

Sources & transparency

Every figure on this page is a published estimate for ZIP Code Tabulation Area 70431, except the affordability ratios and mortgage estimate, which we derive from those medians and label as estimates.

Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.