91911 ZIP Code, Chula Vista, CA

91911 is a ZIP code in Chula Vista, California in San Diego County. It covers 13 square miles of land. The closest ZIP codes are 91910, 92173 and 91913. 85,542 people live here in 25,440 households, which puts it among the most populous 1% of California ZIP codes. At about 6,721 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (52% own). Median household income is $82,350, below the California median of $99,122; 41% of households have children under 18.

Quick facts

Key figures

MeasureValue
Residents85,542
Households25,440
Median household income$82,350
Income per person$33,159
Median age36.9
Homeowners52.1%
Median home value$636,100
Median rent$2,078
Bachelor's degree or higher19.6%
Average commute (minutes)27.5
Households with kids under 1840.9%
Moved in the past year7.5%
Below the poverty line10.4%
Broadband internet92.6%
Speak a non-English language at home66.2%

Household income

% of householdsValue
<$10K2.5%
$10–15K2.7%
$15–25K6.4%
$25–35K7.1%
$35–50K9.8%
$50–75K16.5%
$75–100K14.1%
$100–150K17.9%
$150–200K11.4%
$200K+11.6%

Age

% of all residentsValue
<1012.4%
10–1913.3%
20–246.6%
25–3415.3%
35–4414.3%
45–5412.4%
55–6411.1%
65–748.5%
75+6.1%

Tenure

% of housing unitsValue
Owned, with mortgage30.2%
Owned outright18.4%
Rented44.4%
Vacant7.0%

Type of building

% of housing unitsValue
Detached house46.7%
Townhome9.8%
2–4 units5.8%
5–19 units11.7%
20+ units17.6%
Mobile / other8.3%

Businesses in 91911

1,574 business establishments with 21,397 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

91911 has 45 USPS carrier routes with 26,361 residential and 2,110 business mailboxes. Open the EDDM route map.

Carrier routes in 91911

91911 has 45 USPS carrier routes (41 city (C), 4 rural (R)) with 26,361 residential and 2,110 business mailboxes. Routes range from 187 homes (C009) to 1,034 homes (C047); the median route has 541 homes. The Census counted 25,440 households in 91911 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2492
250–49916
500–74918
750–9998
1,000–1,4991
1,500+0

Best routes in 91911 for…

Most businesses

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

  1. Route C040 — USPS business mailboxes 393, 199 homes
  2. Route C037 — USPS business mailboxes 253, 392 homes
  3. Route C033 — USPS business mailboxes 217, 860 homes
  4. Route C017 — USPS business mailboxes 187, 491 homes
  5. Route C047 — USPS business mailboxes 139, 1,034 homes

Select these 5 routes on the route map

Every carrier route in 91911

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City3712$95,057———
C002City66291$83,076———
C003City50651$87,181———
C004City66935$77,901———
C006City9927$55,896———
C007City6974$66,693———
C008City4660$79,380———
C009City1871$75,000———
C010City4333$133,102———
C011City54210$79,380———
C013City3951$79,380———
C014City4681$106,758———
C015City6173$54,907———
C017City491187$50,879———
C018City4452$102,978———
C019City74124$99,594———
C020City4341$109,598———
C021City3892$147,251———
C022City5220$104,293———
C023City65527$58,882———
C026City6032$44,033———
C027City4443$85,914———
C028City5411$95,183———
C029City4302$102,978———
C030City75393$60,755———
C032City933113$59,953———
C033City860217$44,033———
C034City3701$170,159———
C035City6329$40,194———
C037City392253$71,870———
C038City4758$83,076———
C040City199393$78,281———
C042City9407$52,938———
C043City59426$89,148———
C044City4620$106,381———
C045City362127$115,920———
C046City798124$47,670———
C047City1,034139$40,194———
C048City53015$66,693———
C049City74129$56,740———
C050City5355$92,767———
R001Rural88528$170,159———
R003Rural6881$124,913———
R050Rural61860$106,381———
R051Rural8602$170,159———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 91911 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

Areas that include 91911

Where it ranks

Mail every home in 91911

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) 91911, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 91911 in?
91911 is a Chula Vista, CA mailing address. By land area, 88% lies inside Chula Vista and 6% lies inside San Diego; the rest is outside any Census-defined city or community.
What county is 91911 in?
91911 is in San Diego County.
What is the population of 91911?
About 85,542 people (±3,108), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 85,442.
What is the median household income in 91911?
$82,350 (±$3,222), 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 91911?
45 USPS carrier routes with 26,361 residential and 2,110 business mailboxes (28,487 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 91911?
The closest, measured center to center: 91910 (2.2 mi, Chula Vista), 92173 (3.6 mi, San Diego), 91913 (3.8 mi, Chula Vista), 91932 (4.7 mi, Imperial Beach), 91950 (4.9 mi, National City) and 92139 (5 mi, San Diego).

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