What city is 91784 in?

91784 is a Upland, CA mailing address. By land area, 73% lies inside Upland and 27% lies inside San Antonio Heights.

What county is 91784 in?

91784 is in San Bernardino County.

What is the population of 91784?

About 26,886 people (±1,450), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 26,718.

What is the median household income in 91784?

$154,349 (±$5,298), 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 91784?

20 USPS carrier routes with 10,120 residential and 181 business mailboxes (10,301 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 91784?

The closest, measured center to center: 91786 (2.5 mi, Upland), 91701 (3.2 mi, Rancho Cucamonga), 91711 (3.5 mi, Claremont), 91737 (4.5 mi, Rancho Cucamonga), 91730 (5.1 mi, Rancho Cucamonga) and 91763 (5.4 mi, Montclair).

91784 ZIP Code, Upland, CA

91784 is a ZIP code in Upland, California in San Bernardino County. It covers 9.1 square miles of land. The closest ZIP codes are 91786, 91701 and 91711. 26,886 people live here in 8,993 households. At about 2,942 people per square mile it has suburban density, and most homes are owner-occupied (85%). Median household income is $154,349, well above the California median of $99,122; the median age is 46.6, older than most ZIP codes.

Quick facts

Mailing city: Upland, CA
County: San Bernardino County
Land area: 9.1 sq mi
Population: 26,886
Median household income: $154,349
Carrier routes: 20 (10,120 homes)

Key figures

Measure	Value
Residents	26,886
Households	8,993
Median household income	$154,349
Income per person	$60,591
Median age	46.6
Homeowners	85.3%
Median home value	$891,600
Median rent	$2,945
Bachelor's degree or higher	46.8%
Average commute (minutes)	31.5
Households with kids under 18	30.7%
Moved in the past year	6.7%
Below the poverty line	6.5%
Broadband internet	98.2%
Speak a non-English language at home	26.0%

Household income

% of households	Value
<$10K	2.7%
$10–15K	2.0%
$15–25K	1.8%
$25–35K	2.9%
$35–50K	3.9%
$50–75K	8.1%
$75–100K	7.6%
$100–150K	18.1%
$150–200K	20.1%
$200K+	32.9%

Age

% of all residents	Value
<10	10.0%
10–19	12.4%
20–24	5.3%
25–34	9.7%
35–44	11.1%
45–54	15.2%
55–64	15.0%
65–74	11.6%
75+	9.6%

Tenure

% of housing units	Value
Owned, with mortgage	58.1%
Owned outright	24.5%
Rented	14.1%
Vacant	3.3%

Type of building

% of housing units	Value
Detached house	89.3%
Townhome	6.4%
2–4 units	1.2%
5–19 units	1.3%
20+ units	1.1%
Mobile / other	0.6%

Businesses in 91784

498 business establishments with 3,894 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 75
Health Care and Social Assistance: 70
Construction: 49
Retail Trade: 48
Accommodation and Food Services: 45
Finance and Insurance: 35
Other Services (except Public Administration): 32
Administrative and Support and Waste Management and Remediation Services: 27

EDDM carrier routes

91784 has 20 USPS carrier routes with 10,120 residential and 181 business mailboxes. Open the EDDM route map.

Carrier routes in 91784

91784 has 20 USPS carrier routes (19 city (C), 1 highway contract (H)) with 10,120 residential and 181 business mailboxes. Routes range from 9 homes (H082) to 731 homes (C067); the median route has 508 homes. The Census counted 8,993 households in 91784 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	7
500–749	12
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 91784 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route C055 — USPS business mailboxes 82, 713 homes
Route C054 — USPS business mailboxes 40, 510 homes
Route C067 — USPS business mailboxes 22, 731 homes
Route C046 — USPS business mailboxes 12, 671 homes
Route C042 — USPS business mailboxes 12, 389 homes

Select these 5 routes on the route map

Every carrier route in 91784

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C019	City	415	2	$148,382	—	—	—
C026	City	509	1	$147,544	—	—	—
C030	City	503	0	$200,001+	—	—	—
C032	City	460	2	$127,605	—	—	—
C037	City	474	0	$150,000	—	—	—
C042	City	389	12	$127,605	—	—	—
C044	City	625	3	$164,047	—	—	—
C046	City	671	12	$179,439	—	—	—
C047	City	468	0	$127,379	—	—	—
C050	City	567	0	$127,379	—	—	—
C051	City	488	1	$68,431	—	—	—
C053	City	564	1	$179,439	—	—	—
C054	City	510	40	$179,439	—	—	—
C055	City	713	82	$175,448	—	—	—
C057	City	507	1	$164,047	—	—	—
C061	City	379	0	$153,266	—	—	—
C062	City	521	1	$179,439	—	—	—
C067	City	731	22	$90,211	—	—	—
C072	City	617	0	$150,000	—	—	—
H082	Highway contract	9	1	$76,482	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 91784 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

91786 — Upland city, CA (2.5 mi)
91701 — Rancho Cucamonga city, CA (3.2 mi)
91711 — Claremont city, CA (3.5 mi)
91737 — Rancho Cucamonga city, CA (4.5 mi)
91730 — Rancho Cucamonga city, CA (5.1 mi)
91763 — Montclair city, CA (5.4 mi)
91764 — Ontario city, CA (5.4 mi)
91762 — Ontario city, CA (5.7 mi)

Areas that include 91784

Upland, CA ZIP codes — 2 ZIP codes
San Antonio Heights, CA ZIP codes — 1 ZIP code
San Bernardino County ZIP codes — 95 ZIP codes
California ZIP code data

Where it ranks

Mail every home in 91784

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) 91784, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 91784 in?: 91784 is a Upland, CA mailing address. By land area, 73% lies inside Upland and 27% lies inside San Antonio Heights.
What county is 91784 in?: 91784 is in San Bernardino County.
What is the population of 91784?: About 26,886 people (±1,450), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 26,718.
What is the median household income in 91784?: $154,349 (±$5,298), 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 91784?: 20 USPS carrier routes with 10,120 residential and 181 business mailboxes (10,301 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 91784?: The closest, measured center to center: 91786 (2.5 mi, Upland), 91701 (3.2 mi, Rancho Cucamonga), 91711 (3.5 mi, Claremont), 91737 (4.5 mi, Rancho Cucamonga), 91730 (5.1 mi, Rancho Cucamonga) and 91763 (5.4 mi, Montclair).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.