91931

Zip code 91931: Guatay, California

Q: What city is zip code 91931?

91931 is assigned to Guatay, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 91931 in?

91931 is in San Diego County, California.

Q: What is the population of 91931?

About 494 people live in 91931, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 91931?

The median household income in 91931 is $63,750.

Q: What zip codes are near 91931?

The closest zip codes to 91931 are 91962, 91916, 91948, 91901, 91903.

Residential delivery areaSan Diego CountyPacific Time

Population

494

Small sample: rough estimates

Median household income

$64K

U.S. $81K

Median home value

—

U.S. $333K

Median rent

—

U.S. $1,413

Median age

65.2

U.S. 38.9

Land area

8.2 sq mi

60 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 91931

91931 is a small-town zip code in Guatay, California (San Diego County), covering 8.2 sq mi of land. About 494 people live here, or 60 per square mile. The median resident is 65.2 years old, compared with 38.9 nationally. With so few residents, the Census figures below are rough estimates with wide margins of error.

The median household earns $63,750 a year, 21% below the national median of $80,734. 3.6% of residents live below the poverty line (U.S.: 12.5%). 81% of occupied homes are lived in by their owners.

23% of adults hold a bachelor's degree or higher (U.S.: 36%). The most common jobs among working residents are in construction and repair; healthcare; and transportation and moving goods.

How 91931 compares

Sorted from highest to lowest national percentile

Only about 494 people live here, so these survey estimates have wide margins of error.

Median age65.2
99th
U.S. 38.9 · CA 37.935th of 1,687 in CA
Uninsured rate42.1%
99th
WeaknessU.S. 8.4% · CA 6.6%7th of 1,675 in CA
Residents 65 and older50.8%
99th
U.S. 17.2% · CA 15.7%36th of 1,688 in CA
Healthcare workers28.8%
99th
U.S. 9.7% · CA 9.4%16th of 1,678 in CA
Homeownership rate81.4%
81st
StrengthU.S. 65.2% · CA 55.9%257th of 1,662 in CA
Foreign-born residents19.4%
73rd
U.S. 14.1% · CA 27%839th of 1,688 in CA
Housing vacancy10.4%
73rd
U.S. 10.1% · CA 7.5%562nd of 1,664 in CA
Diversity index53.3
58th
U.S. 61.4 · CA 69.7905th of 1,688 in CA
Per capita income$34,239
32nd
U.S. $44,673 · CA $49,5131,155th of 1,685 in CA
Bachelor's degree or higher22.6%
28th
U.S. 35.7% · CA 37.1%1,114th of 1,687 in CA
Median household income$63,750
26th
U.S. $80,734 · CA $99,1221,287th of 1,575 in CA
Population density60/sq mi
9th
U.S. 95/sq mi · CA 252/sq mi1,279th of 1,688 in CA
Broadband access83.1%
8th
WeaknessU.S. 91% · CA 93.5%1,491st of 1,662 in CA
Poverty rate3.6%
5th
StrengthU.S. 12.5% · CA 12%1,554th of 1,666 in CA
Residents under 1811.9%
4th
U.S. 22% · CA 22%1,437th of 1,688 in CA
Median earnings per worker$31,078
4th
WeaknessU.S. $49,666 · CA $52,6431,540th of 1,658 in CA
Population494
1st
U.S. 334,922,499 · CA 39,287,3771,533rd of 1,688 in CA
Work from home0%
1st
U.S. 15.1% · CA 17.2%1,652nd of 1,680 in CA
Unemployment rate0%
1st
StrengthU.S. 5.2% · CA 6.6%1,629th of 1,681 in CA
Veterans0%
1st
U.S. 6.2% · CA 4.3%1,659th of 1,686 in CA
Rent-burdened renters0%
1st
StrengthU.S. 51.1% · CA 55.3%1,592nd of 1,610 in CA
Tech workers0%
1st
U.S. 3.8% · CA 4.4%1,571st of 1,678 in CA
Self-employed workers0%
1st
U.S. 10% · CA 11.4%1,642nd of 1,678 in CA
Government workers0%
1st
U.S. 14.5% · CA 14.8%1,661st of 1,678 in CA
Income inequality (Gini)0.281
1st
StrengthU.S. 0.483 · CA 0.4891,600th of 1,651 in CA

Measure	91931	San Diego	CA	U.S.	National percentile	Rank in CA
Median age	65.2	37.3	37.9	38.9	99th	35th of 1,687
Uninsured rateWeakness	42.1%	6.4%	6.6%	8.4%	99th	7th of 1,675
Residents 65 and older	50.8%	15.4%	15.7%	17.2%	99th	36th of 1,688
Healthcare workers	28.8%	9.5%	9.4%	9.7%	99th	16th of 1,678
Homeownership rateStrength	81.4%	54.6%	55.9%	65.2%	81st	257th of 1,662
Foreign-born residents	19.4%	22.8%	27%	14.1%	73rd	839th of 1,688
Housing vacancy	10.4%	6.3%	7.5%	10.1%	73rd	562nd of 1,664
Diversity index	53.3	68.1	69.7	61.4	58th	905th of 1,688
Per capita income	$34,239	$51,976	$49,513	$44,673	32nd	1,155th of 1,685
Bachelor's degree or higher	22.6%	43.2%	37.1%	35.7%	28th	1,114th of 1,687
Median household income	$63,750	$106,268	$99,122	$80,734	26th	1,287th of 1,575
Population density	60/sq mi	781/sq mi	252/sq mi	95/sq mi	9th	1,279th of 1,688
Broadband accessWeakness	83.1%	94.9%	93.5%	91%	8th	1,491st of 1,662
Poverty rateStrength	3.6%	10.3%	12%	12.5%	5th	1,554th of 1,666
Residents under 18	11.9%	20.9%	22%	22%	4th	1,437th of 1,688
Median earnings per workerWeakness	$31,078	$56,349	$52,643	$49,666	4th	1,540th of 1,658
Population	494	3,288,774	39,287,377	334,922,499	1st	1,533rd of 1,688
Work from home	0%	18.7%	17.2%	15.1%	1st	1,652nd of 1,680
Unemployment rateStrength	0%	6.1%	6.6%	5.2%	1st	1,629th of 1,681
Veterans	0%	7.3%	4.3%	6.2%	1st	1,659th of 1,686
Rent-burdened rentersStrength	0%	57.8%	55.3%	51.1%	1st	1,592nd of 1,610
Tech workers	0%	5.1%	4.4%	3.8%	1st	1,571st of 1,678
Self-employed workers	0%	11.2%	11.4%	10%	1st	1,642nd of 1,678
Government workers	0%	14.7%	14.8%	14.5%	1st	1,661st of 1,678
Income inequality (Gini)Strength	0.281	0.458	0.489	0.483	1st	1,600th of 1,651

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

12%

Under 5

5–17

13%

18–24

21%

25–34

35–44

45–54

55–64

30%

65–74

21%

75+

Median age

65.2

Under 18

11.9%

65 and over

50.8%

Race and ethnicity

White49%
Black0%
Hispanic48%
Asian0%
Native American0%
Pacific Islander0%
Other0%
Multiracial3%

Diversity index

53.3

U.S. 61.4

Foreign-born

19.4%

U.S. 14.1%

Born in state

42.3%

Language spoken at home (households)

English only

81%

Spanish

19%

Other Indo-European

Asian / Pacific

Other

Households

Households: 242
Average household size: 2
Family households: 42.6%
Married couples: 42.6%
Living alone: 43.4%
Veterans (of adults): 0%
Male / female: 44% / 56%

Income and poverty

Household income distribution

<$25k

$25–50k

$50–75k

36%

$75–100k

36%

$100–150k

$150–200k

14%

$200k+

Median household income

91931

$63,750

San Diego Co.

$106,268

California

$99,122

United States

$80,734

Per capita income

$34,239

U.S. $44,673

Poverty rate

3.6%

U.S. 12.5%

Households earning $150K+

14%

U.S. 23%

Income inequality (Gini)

0.281

U.S. 0.483

Housing

Median home value

91931

—

San Diego Co.

$854,700

California

$734,700

United States

$332,700

Median gross rent

91931

—

San Diego Co.

$2,246

California

$2,036

United States

$1,413

Types of housing

Single-family

36%

2–4 units

5–19 units

20+ units

Mobile home

15%

Boat, RV, van

49%

Housing units: 270
Owner-occupied: 81.4%
Vacant: 10.4%
Median year built: 1989
Median rooms: 4.3
Renters paying 30%+ of income: 0%
Renters paying 50%+ of income: 0%
Home value to income: —

Work and commute

How people get to work

Drove alone

100%

Carpooled

Transit

Walked

Bicycle

Worked from home

Other

Commute time (one way)

<10 min

10–19

13%

20–29

26%

30–44

39%

45–59

60+

22%

Average commute

—

U.S. 26.4 min

Unemployment

U.S. 5.2%

In labor force

42.3%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Construction and repair

34%

Healthcare

29%

Transportation and moving

28%

Food service

Management

Business and finance

Computer and math

Engineering and science

Education

Legal and social services

Arts, media and sports

Police and fire

Cleaning and personal care

Sales

Office and admin

Farming, fishing and forestry

Production

Industries

Construction

43%

Health care and social assistance

29%

Transportation, warehousing and utilities

18%

Restaurants and hotels

Education

Retail

Manufacturing

Professional and technical services

Finance, insurance and real estate

Public administration

Admin, support and management

Other services

Wholesale

Information

Arts and recreation

Agriculture and mining

Median earnings per worker

$31,078

U.S. $49,666

Self-employed

U.S. 10%

Government workers

U.S. 14.5%

Nonprofit workers

U.S. 8.8%

Median earnings by type of work

Type of work	91931	U.S.
Management, business, science and arts	—	$74,888
Service	—	$26,804
Sales and office	—	$40,476
Construction and maintenance	—	$49,199
Production and transportation	—	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

26%

High school

Some college

42%

Associate's

Bachelor's

23%

Graduate

High school graduate or higher: 74.2%
Bachelor's degree or higher: 22.6%
Graduate or professional degree: 0%
Households with broadband: 83.1%
Cable, fiber or DSL: 61.6%
No internet access: 16.9%
Without health insurance: 42.1%
Limited-English households: 0%

Geography

City (USPS): Guatay
State: California
County: San Diego County
Center point: 32.8376° N, 116.5803° W
Land area: 8.2 sq mi
Water area: under 0.1 sq mi
Time zone: Pacific Time (UTC-8, UTC-7 in summer)
Zip type: Residential delivery area

Zip codes near 91931

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
91962	Pine Valley, CA	3.6 mi	2,574	$143,094	$528,100
91916	Descanso, CA	5.9 mi	1,710	$103,438	$676,800
91948	Mount Laguna, CA	6.5 mi	93	$55,066	—
91901	Alpine, CA	8.7 mi	18,197	$114,167	$852,000
91903	Alpine, CA · PO box	11 mi	—	—	—
91963	Potrero, CA	13 mi	689	—	—
91906	Campo, CA	14 mi	3,325	$62,500	$327,600
91935	Jamul, CA	15 mi	9,114	$151,538	$902,400
91917	Dulzura, CA	17 mi	749	—	$564,500
92021	El Cajon, CA	17 mi	70,501	$74,013	$611,900
92019	El Cajon, CA	17 mi	45,351	$101,973	$801,400
91980	Tecate, CA	18 mi	176	—	—

Questions about 91931

What city is zip code 91931?

91931 is assigned to Guatay, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 91931 in?

91931 is in San Diego County, California.

What is the population of 91931?

About 494 people live in 91931, according to the Census Bureau's American Community Survey.

What time zone is 91931 in?

91931 is in Pacific Time.

What is the median household income in 91931?

The median household income in 91931 is $63,750.

What zip codes are near 91931?

The closest zip codes to 91931 are 91962, 91916, 91948, 91901, 91903.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 91931, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.