Alhambra, CA · standard
ZIP Code 91803
Los Angeles County, California — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 30,322
- 3,585/sq mi
- $84,311
- Median income
- $888,600
- Median home value
- 38.3%
- Bachelor's or higher
The verdict
Alhambra pairs an above-median household income with top-decile home values, in a suburban-density, mixed-tenure area.
- Top 33%
- household income, US ZIPs
- Top 3%
- home value, US ZIPs
- 3,585
- people per sq mi
- 48%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 91803 against every reporting US ZIP.
ZIP code 91803 is classified by USPS as a standard delivery area and covers roughly 8.5 square miles in Alhambra, Los Angeles County, California. The area is home to 30,322 residents, producing a population density of 3,585 people per square mile, and falls within the Los Angeles time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 91803 against California and the nation.
On the economic side, the median household income for ZIP 91803 sits at $84,311 (17% below the California average), while per-capita income is $42,858. The poverty rate stands at 13.3% and the unemployment rate at 4.0%. On housing, the median home value is $888,600 (15% above the state average) with median rent at $1,847 per month, and 48.4% of occupied units are owner-occupied, a direct signal of whether 91803 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 38.3% of adults hold a bachelor's degree or higher, the median age is 41.8, and the average commute is 30 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Los Angeles County, so you can benchmark 91803 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 91803
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 91803.
- Professional, scientific, and technical services
Professional, scientific, and technical services
115 establishments
- Transportation and warehousing
Transportation and warehousing
109 establishments
- Wholesale trade
Wholesale trade
97 establishments
- Retail trade
Retail trade
88 establishments
- Health care and social assistance
Health care and social assistance
88 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 91803, Alhambra, CA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
30,322
Population
8.5
Area (sq mi)
3,585
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 91803?
41.8
Median Age
48.7%
Male
51.3%
Female
45.4%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$84,311
Median Household Income
-17% vs state
$42,858
Per Capita Income
13.3%
Poverty Rate
4.0%
Unemployment Rate
30.0 min
Mean Commute Time
How ZIP 91803 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$84,311 Top 33% higher than 67% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
10,700
Total Housing Units
10,028
Occupied Units
672
Vacant Units
2.75
Avg Household Size
Occupancy Type
$888,600
Median Home Value
+15% vs state
$1,847
Median Rent
1954
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+2.3%
YoY Change (2024)
428
HPI Index (2000 = 100)
+328%
Total Change Since 2000
Home values in ZIP 91803 have increased 2.3% over the past year (2024). Since 2000, this ZIP has seen +328% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +3.3% | 314 |
| 2021 | +11.9% | 351 |
| 2022 | +12.3% | 394 |
| 2023 | +6.0% | 418 |
| 2024 | +2.3% | 428 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 876 business establishments in ZIP 91803, employing approximately 7,125 people with a combined annual payroll of $379,759,000.
876
Businesses
7,125
Employees
$379.8M
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 115 | 13.1% |
| Transportation and warehousing | 109 | 12.4% |
| Wholesale trade | 97 | 11.1% |
| Retail trade | 88 | 10.1% |
| Health care and social assistance | 88 | 10.1% |
| Accommodation and food services | 69 | 7.9% |
| Other services (except public administration) | 67 | 7.7% |
| Real estate and rental and leasing | 58 | 6.6% |
| Construction | 41 | 4.7% |
| Manufacturing | 37 | 4.2% |
| Finance and insurance | 27 | 3.1% |
| Administrative and support and waste management and remediation services | 27 | 3.1% |
| Arts, entertainment, and recreation | 17 | 1.9% |
| Information | 15 | 1.7% |
| Educational services | 15 | 1.7% |
| Management of companies and enterprises | 4 | 0.5% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 91803 vs 91754 →
ZIP 91803 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 90022
Los Angeles (90022)
67,179 residents
- 91770
Rosemead (91770)
62,097 residents
- 90063
Los Angeles (90063)
55,758 residents
- 91801
Alhambra (91801)
52,735 residents
- 90032
Los Angeles (90032)
45,786 residents
- 90031
Los Angeles (90031)
39,316 residents
- 91776
San Gabriel (91776)
38,475 residents
- 91754
Monterey Park (91754)
32,742 residents
- 91803
Alhambra (91803)
30,322 residents
What this shows Among its immediate neighbors, ZIP 91803 ranks #9 by population — useful context the national average alone can't give.
ZIP 91803 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 91030
South Pasadena (91030)
$127,175 median income
- 91801
Alhambra (91801)
$89,156 median income
- 91754
Monterey Park (91754)
$86,331 median income
- 91803
Alhambra (91803)
$84,311 median income
- 90032
Los Angeles (90032)
$82,292 median income
- 91776
San Gabriel (91776)
$82,155 median income
- 91755
Monterey Park (91755)
$76,382 median income
- 91770
Rosemead (91770)
$75,000 median income
- 90063
Los Angeles (90063)
$72,942 median income
What this shows By household income, ZIP 91803 ranks #4 of 9 neighboring ZIPs — local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 91754 | Monterey Park, CA | 32,742 | 1.7 mi |
| 91801 | Alhambra, CA | 52,735 | 1.5 mi |
| 90032 | Los Angeles, CA | 45,786 | 1.9 mi |
| 91030 | South Pasadena, CA | 25,616 | 2.5 mi |
| 91755 | Monterey Park, CA | 27,496 | 2.6 mi |
| 90022 | Los Angeles, CA | 67,179 | 3.5 mi |
| 91776 | San Gabriel, CA | 38,475 | 3.1 mi |
| 90063 | Los Angeles, CA | 55,758 | 3.1 mi |
| 90031 | Los Angeles, CA | 39,316 | 3.7 mi |
| 91770 | Rosemead, CA | 62,097 | 3.7 mi |
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Frequently Asked Questions
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How many businesses are in ZIP code 91803? ▼
What are the main industries in ZIP code 91803? ▼
How have home values changed in ZIP code 91803? ▼
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What is the average commute time in ZIP 91803? ▼
What percentage of residents own vs. rent in ZIP 91803? ▼
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ZIP Code Research Guides
Official Data Resources for Alhambra, CA
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.