City

ZIP codes in Laredo, Texas

Laredo is a city in Webb County, Texas, with a population of 255,205, about 0.9% of the state's residents, at roughly 2,339 people per square mile. It has 7 ZIP codes, uses area codes 361 and 956 and follows Central Time.

Laredo at a glance · Data updated September 27, 2026

255,205
Residents: 7
ZIP codes: 78,082
Households: $63,915
Median household income: 29.9
Median age: 109
Square miles

View all 7 ZIP codes

Each shape is a residential ZIP code area (circles mark areas without an outline). Select one for details.

Laredo compared with Texas

0.9%

of Texas's population lives in Laredo

2,339 / sq mi

population density, compared with 109 / sq mi across Texas

20% below

the Texas median household income ($79,721)

All 7 ZIP codes in Laredo

Select a ZIP code to see its map and demographics.


Standard	36,688	$36,092	30.1
Standard	48,491	$61,544	32.9
PO Box	—	—	—
Standard	43,473	$54,396	28.8
Standard	200	—	45
Standard	65,354	$90,608	33.7
Standard	71,956	$55,826	26

How Laredo ranks

What stands out about Laredo: a notably young population and larger-than-typical households.

Population: 255,205 — 12th of 53 cities in Texas.
Median household income: $63,915 — 37th of 53 cities in Texas.
Median age: 29.9 — 50th of 53 cities in Texas (among the youngest cities we cover).
Share of adults with a bachelor's degree: 22% — 47th of 53 cities in Texas.
Population density: 2,339/sq mi — 30th of 53 cities in Texas.

Inside Laredo's ZIP codes

Of the 7 ZIP codes tied to Laredo, 6 (86%) are standard delivery areas that cover real neighborhoods; the rest are 1 PO Box codes that serve mailboxes or single large recipients rather than residents.

Residents are spread across 6 populated ZIP codes. The largest, 78046, holds 71,956 people (27% of the city's ZIP-level population), and the three largest together hold 70%. That is a fairly concentrated layout.

Income varies by ZIP code: 78045 has the highest median household income at $90,608, while 78040 has the lowest at $36,092, a gap of 2.5×.

The oldest ZIP-code population is in 78045 (median age 33.7); the youngest is in 78046 (median age 26).

78040 is the most densely settled ZIP code at about 5,819 people per square mile, compared with 99 in 78045.

Compared with similar Texas cities

City	Population	Median income	Median age	ZIP codes
Corpus Christi →	317,863	$67,394	36.9	30
Plano →	285,494	$112,253	39.6	9
Lubbock →	257,141	$60,895	30.5	26
Irving →	256,684	$81,830	32.8	12
Laredo	255,205	$63,915	29.9	7
Garland →	246,018	$76,320	35	9
Frisco →	200,509	$150,212	38.3	4

All Texas cities →

Frequently asked questions about ZIP codes in Laredo

How many ZIP codes does Laredo have?+

Laredo has 7 ZIP codes: 6 standard, 1 PO Box and 0 unique-organization. Only standard ZIP codes cover residential areas; 6 of them have residents according to the Census.

Which ZIP code in Laredo has the most people?+

78046 is the most populated, with 71,956 residents and a median household income of $55,826.

What is the median household income in Laredo?+

$63,915, which is 20% below the Texas median. By ZIP code it ranges from $36,092 in 78040 to $90,608 in 78045.

How big is Laredo compared with other Texas cities?+

Laredo is the 12th largest of the 53 Texas cities we cover, with 255,205 residents.

What time zone and area codes does Laredo use?+

Laredo is in the Central Time zone and uses area codes 361 and 956.