91701 ZIP Code, Rancho Cucamonga, CA
91701 is a ZIP code in Rancho Cucamonga, California in San Bernardino County. It covers 7.4 square miles of land. The closest ZIP codes are 91737, 91730 and 91784. 39,287 people live here in 13,054 households. At about 5,315 people per square mile it is built up to city-neighborhood density, and most homes are owner-occupied (78%). Median household income is $114,244, above the California median of $99,122.
Quick facts
- Mailing city: Rancho Cucamonga, CA
- County: San Bernardino County
- Land area: 7.4 sq mi
- Population: 39,287
- Median household income: $114,244
- Carrier routes: 21 (13,487 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 39,287 |
| Households | 13,054 |
| Median household income | $114,244 |
| Income per person | $49,347 |
| Median age | 42.4 |
| Homeowners | 77.5% |
| Median home value | $795,300 |
| Median rent | $2,416 |
| Bachelor's degree or higher | 37.1% |
| Average commute (minutes) | 31.9 |
| Households with kids under 18 | 31.9% |
| Moved in the past year | 8.3% |
| Below the poverty line | 4.6% |
| Broadband internet | 93.6% |
| Speak a non-English language at home | 28.4% |
Household income
| % of households | Value |
|---|---|
| <$10K | 2.0% |
| $10–15K | 1.8% |
| $15–25K | 2.7% |
| $25–35K | 2.9% |
| $35–50K | 6.1% |
| $50–75K | 12.4% |
| $75–100K | 15.4% |
| $100–150K | 21.2% |
| $150–200K | 13.4% |
| $200K+ | 22.2% |
Age
| % of all residents | Value |
|---|---|
| <10 | 11.8% |
| 10–19 | 12.1% |
| 20–24 | 5.3% |
| 25–34 | 12.4% |
| 35–44 | 11.5% |
| 45–54 | 13.4% |
| 55–64 | 14.1% |
| 65–74 | 11.9% |
| 75+ | 7.4% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 52.2% |
| Owned outright | 23.6% |
| Rented | 21.8% |
| Vacant | 2.3% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 77.4% |
| Townhome | 3.4% |
| 2–4 units | 5.9% |
| 5–19 units | 1.8% |
| 20+ units | 5.5% |
| Mobile / other | 6.0% |
Businesses in 91701
642 business establishments with 3,424 employees (ZIP Codes Business Patterns 2023).
- Construction: 106
- Professional, Scientific, and Technical Services: 68
- Health Care and Social Assistance: 68
- Retail Trade: 65
- Other Services (except Public Administration): 61
- Transportation and Warehousing: 56
- Accommodation and Food Services: 52
- Real Estate and Rental and Leasing: 44
EDDM carrier routes
91701 has 21 USPS carrier routes with 13,487 residential and 308 business mailboxes. Open the EDDM route map.
Carrier routes in 91701
91701 has 21 USPS carrier routes (21 city (C)) with 13,487 residential and 308 business mailboxes. Routes range from 199 homes (C036) to 1,146 homes (C034); the median route has 654 homes. The Census counted 13,054 households in 91701 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 3 |
| 500–749 | 14 |
| 750–999 | 2 |
| 1,000–1,499 | 1 |
| 1,500+ | 0 |
Best routes in 91701 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C035 — USPS business mailboxes 91, 455 homes
- Route C034 — USPS business mailboxes 63, 1,146 homes
- Route C040 — USPS business mailboxes 60, 546 homes
- Route C069 — USPS business mailboxes 36, 620 homes
- Route C038 — USPS business mailboxes 30, 665 homes
Select these 5 routes on the route map
Every carrier route in 91701
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C016 | City | 745 | 2 | $122,782 | — | — | — |
| C019 | City | 748 | 1 | $63,699 | — | — | — |
| C022 | City | 785 | 2 | $118,789 | — | — | — |
| C024 | City | 740 | 1 | $98,096 | — | — | — |
| C025 | City | 485 | 0 | $156,643 | — | — | — |
| C026 | City | 688 | 12 | $108,488 | — | — | — |
| C028 | City | 696 | 0 | $81,888 | — | — | — |
| C029 | City | 619 | 2 | $135,876 | — | — | — |
| C030 | City | 561 | 1 | $160,103 | — | — | — |
| C031 | City | 877 | 2 | $63,699 | — | — | — |
| C032 | City | 538 | 1 | $160,103 | — | — | — |
| C033 | City | 714 | 2 | $108,488 | — | — | — |
| C034 | City | 1,146 | 63 | $41,945 | — | — | — |
| C035 | City | 455 | 91 | $139,472 | — | — | — |
| C036 | City | 199 | 1 | $63,699 | — | — | — |
| C038 | City | 665 | 30 | $110,033 | — | — | — |
| C039 | City | 569 | 0 | $158,120 | — | — | — |
| C040 | City | 546 | 60 | $135,876 | — | — | — |
| C041 | City | 437 | 1 | $156,643 | — | — | — |
| C068 | City | 654 | 0 | $178,449 | — | — | — |
| C069 | City | 620 | 36 | $116,182 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 91701 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 91737 — Rancho Cucamonga city, CA (1.7 mi)
- 91730 — Rancho Cucamonga city, CA (2.8 mi)
- 91784 — Upland city, CA (3.2 mi)
- 91786 — Upland city, CA (4.2 mi)
- 91764 — Ontario city, CA (4.4 mi)
- 91739 — Rancho Cucamonga city, CA (4.9 mi)
- 91711 — Claremont city, CA (6.6 mi)
- 91762 — Ontario city, CA (6.7 mi)
Areas that include 91701
- Rancho Cucamonga, CA ZIP codes — 4 ZIP codes
- San Bernardino County ZIP codes — 95 ZIP codes
- California ZIP code data
Where it ranks
- No. 8 of 69: highest median household income in San Bernardino County
- No. 5 of 68: highest median home value in San Bernardino County
- No. 13 of 69: highest share of owner-occupied homes in San Bernardino County
- No. 18 of 71: highest median age in San Bernardino County
Mail every home in 91701
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 91701, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 91701 in?
- 91701 is a Rancho Cucamonga, CA mailing address. By land area, 100% lies inside Rancho Cucamonga.
- What county is 91701 in?
- 91701 is in San Bernardino County.
- What is the population of 91701?
- About 39,287 people (±1,706), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 38,778.
- What is the median household income in 91701?
- $114,244 (±$4,684), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 91701?
- 21 USPS carrier routes with 13,487 residential and 308 business mailboxes (13,794 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 91701?
- The closest, measured center to center: 91737 (1.7 mi, Rancho Cucamonga), 91730 (2.8 mi, Rancho Cucamonga), 91784 (3.2 mi, Upland), 91786 (4.2 mi, Upland), 91764 (4.4 mi, Ontario) and 91739 (4.9 mi, Rancho Cucamonga).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.