70403
ZIP 70403 is in Hammond, Louisiana, mostly in Tangipahoa Parish; area code 985; Central time. Hammond has 4 ZIP codes; the others are 70401, 70402 and 70404.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Tangipahoa +1 more
- Metro area
- Hammond, LA
- Population
- 30,173
- Coordinates
- 30.4856, -90.4877
Weather right now
Asking the National Weather Service…
Where 70403 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 70403 into a pocket calculator and turn it upside down: EOhOL — not quite a word, sorry.
- ➕ As a number, 70,403 = 23 × 3061. Its digits add up to 14, a total 1,416 other ZIP codes share.
- 💾In binary, the way a computer stores it:
10001001100000011 - 🏠 Its numerical neighbours: 70402 (Hammond, LA, 2 mi away) and 70404 (Hammond, LA, 2 mi away).
- 🔄 Backwards, 70403 becomes 30407, which is not a ZIP code at all.
- 👥 31 other ZIP codes are made of exactly the same digits (00734, 03047, 03470, 03740, 04037, 04073, …). The farthest-flung twin is 00734 in Ponce, PR, 1,728 miles away.
- 🧭 Farther south than 92% of all ZIP codes, and farther west than 58%.
- 🎯790 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 70403 and you would come out at 30.49°S, 89.51°E — 1,350 miles from West Island, Cocos Islands, the nearest big city to that spot.
- ☀Longest day of the year: 14h 07m of daylight. Shortest: 10h 10m.
- 📏 At 42.3 square miles of land, 70403 is bigger than 55% of ZIP codes — room for about 32 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 30,173This ZIP30,173 |
|---|---|
| Households | 12,582This ZIP12,582 |
| Housing units | 14,019This ZIP14,019 |
| Median age | 36.1This ZIP36.1Louisiana38.0US 38.9 |
| Median household income | $50,976This ZIP$50,976Louisiana$60,756US $80,734 |
| Median home value | $212,400This ZIP$212,400Louisiana$216,500US $332,700 |
| Median gross rent | $1,079This ZIP$1,079Louisiana$1,064US $1,413 |
| Bachelor's degree or higher | 22.8%This ZIP22.8% |
| Mean commute | 29.3 minThis ZIP29.3 min |
| Population density | 713.0 / sq miThis ZIP713.0 / sq mi |
Business and tax activity
| Business establishments | 806This ZIP806 |
|---|---|
| Employees | 16,120This ZIP16,120 |
| Annual payroll | $751,570,000This ZIP$751,570,000 |
| Tax returns filed | 12,200This ZIP12,200 |
| Total adjusted gross income | $765,922,000This ZIP$765,922,000 |
Land area
| Land area | 42.32 sq miThis ZIP42.32 sq mi |
|---|---|
| Water area | 0.22 sq miThis ZIP0.22 sq mi |
Counties 70403 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Tangipahoa Parish | 86.1% |
| Livingston Parish | 13.9% |
Other place names in 70403
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 70403
| ZIP | City | Distance |
|---|---|---|
70404 | Hammond, LA | 2.0 mi |
70402 | Hammond, LA | 2.4 mi |
70401 | Hammond, LA | 3.8 mi |
70451 | Natalbany, LA | 4.4 mi |
70466 | Tickfaw, LA | 5.8 mi |
70711 | Albany, LA | 6.8 mi |
70462 | Springfield, LA | 9.4 mi |
70455 | Robert, LA | 10.2 mi |
70443 | Independence, LA | 10.5 mi |
70454 | Ponchatoula, LA | 11.4 mi |
Find every ZIP code within 10 miles of 70403 →
Questions about this ZIP code
Where is ZIP code 70403?
70403 is in Hammond, Louisiana, in Tangipahoa Parish, part of the Hammond, LA metropolitan area. Its published point location is 30.4856, -90.4877.
What county is 70403 in?
70403 spans 2 counties: Tangipahoa Parish and Livingston Parish. Most of it falls in Tangipahoa Parish, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What area code is 70403?
Hammond uses area code 985, from NANPA's telephone records.
What time zone is 70403 in?
70403 uses America/Chicago.
How many people live in 70403?
About 30,173 people live in ZIP code 70403, in 12,582 households, at 713.0 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 70403?
$50,976 a year, against $60,756 across Louisiana.
What ZIP codes are near 70403?
The closest are 70404 (2 mi), 70402 (2.4 mi), 70401 (3.8 mi), 70451 (4.4 mi) and 70466 (5.8 mi).
Is 70403 a PO Box ZIP code?
70403 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “70403 ZIP Code — Hammond, Louisiana (Tangipahoa Parish).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/70403
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/70403.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.