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Rowland Heights CDP, CA

ZIP Code 91748 — Rowland Heights CDP, CA Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLow Snow Area

Map, Quick Facts & Location

Quick Facts

Local time
Population
43,137
Median Income
$83,455
+11% vs US avg
Home Value
$781,500
+125% vs US avg
Median Rent
$1,831
+57% vs US avg
Median Age
44.7 yrs
+15% vs US avg
Area Code
Congress
Top Ancestry
AmericanGermanEnglish
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Location
Coordinates
33.9749, -117.9007
Elevation
235 ft
Land Area
14.5 sq mi
Water Area
0.1 sq mi (1% water)

At a glance

Population
43,137
Density
N/A
Median income
$83,455
+11% vs US avg
Home value
$781,500
+125% vs US avg
Median rent
$1,831
+57% vs US avg
Timezone

Overview of ZIP Code 91748

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What to know about ZIP 91748

ZIP code 91748 covers Rowland Heights, CA in Los Angeles County with a population of about 43,137.

At a glance, the area shows median age of 44.7 versus a U.S. median of about 38.9.

It sits in telephone area code 626; U.S. House district CA-38; the LOS ANGELES media market.

Income and economy in Rowland Heights, CA

Median household income in ZIP 91748 is about $83,455 — about 11% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 11.8%; unemployment rate near 6.7%; 35.0% of adults with a bachelor’s degree or higher (about 1.3 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Manufacturing, and Retail trade; about 12.1% of workers reporting work-from-home (about 3.1 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 91748

Median home value is about $781,500 — about 125% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,831 (about 57% above the U.S. median rent ($1,163)), and owner-occupancy near 64.6% (roughly in line with the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 91748 in Rowland Heights, CA, a household would need roughly $215,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $5,020. That is about 158% above the local median household income ($83,455), so the median earner would likely stretch or need a larger down payment. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for Rowland Heights CDP, CA as Very High (composite score 100.0), which is among the highest nationally. The strongest component scores on US5 are flood (100.0) and wildfire (99.9). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Rowland Heights CDP, CA show little to no average snow and around 13.5 inches of annual precipitation.

IRS migration statistics show a net inflow of about 2,123 for ZIP 91748 (Rowland Heights CDP, CA) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport LGB (18.0 miles (29.0 km)) · Mt San Antonio College (5.9 miles (9.5 km)) · Juan Bautista de Anza National Historic Trail (39.4 miles (63.4 km)) · VA: Anaheim (9.6 miles (15.5 km))

Full lists and map pins are in the Infrastructure section below.