91945 ZIP Code — Lemon Grove, CA

San Diego County, California

ZIP code 91945 is located in Lemon Grove, California, within San Diego County. It covers approximately 3.95 square miles and serves a population of 27,541 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 619/858.

About ZIP code 91945

The housing stock consists of a mix of housing types. Most homes were built in the 1950s, giving the area an established character. Median home value is $593,300. Owner-occupancy sits near the national average at 54%.

Median household income is $77,989. 31% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 29 minutes is near the national average.

College attainment at 20% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 91945 reflects a community defined by a trades-oriented workforce and a significant Social Security-dependent population.

27,541

population

3.95

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

91945 ZIP code map

Cities in ZIP code 91945

Below are the cities the US Postal Service accepts for ZIP code 91945. Using any city not on this list may result in mail delivery delays.

City	Status
Lemon Grove	Preferred

Nearby ZIP codes

92114 San Diego (1.9 mi) 92115 San Diego (2.5 mi) 91977 Spring Valley (2.6 mi) 91941 La Mesa (2.8 mi) 92105 San Diego (3.1 mi) 91942 La Mesa (3.5 mi) 92182 San Diego (3.6 mi) 92139 San Diego (3.8 mi) 91902 Bonita (4.1 mi) 92102 San Diego (4.8 mi) 92120 San Diego (4.8 mi) 92119 San Diego (5 mi)

Demographics updated 05/2026

Population
Total population	27,541
Population density	6,972 / sq mi
State FIPS	06
County FIPS	073

Geography
Land area	3.95 sq mi
Water area	0.00 sq mi
Latitude	32.7343
Longitude	-117.0364
Timezone	Pacific (PT)
Area code	619/858

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	37.8%	30.1%	32.6%
$50k – $100k	35.0%	28.5%	27.7%
$100k – $200k	24.7%	28.6%	26.4%
Over $200k	2.5%	12.9%	13.3%

Demographics & statistics

27,541

Population

6,972

People per sq mi

37.4

Median age

$77,989

Median household income

$33,281

Per capita income

$593,300

Median home value

$1,693

Median monthly rent

53.9%

Home ownership

9.9%

Poverty rate

8.2%

Unemployment

5,295

Housing units

19.9%

Bachelor's or higher

Age distribution

Male Female

746

Under 5

734

812

5–9

799

846

10–14

831

951

15–19

935

944

20–24

929

2,268

25–34

2,231

1,717

35–44

1,688

1,704

45–54

1,676

898

55–59

883

1,029

60–64

1,011

1,372

65–74

1,350

445

75–84

437

154

85+

151

← Male

Female →

Age summary

Group	Count	%
Under 18	6,018	21.9%
18 and over	21,523	78.1%
65 and over	3,909	14.2%
Median age	37.4 years

Race & ethnicity

White 34.1%

Hispanic or Latino 19.9%

Two or more races 15%

Black or African American 12.4%

Other race 9.5%

Asian 7.2%

American Indian / Alaska Native 1.3%

Native Hawaiian / Pacific Islander 0.6%

Group	Count	%
White	11,708	34.1%
Hispanic or Latino	6,838	19.9%
Two or more races	5,168	15%
Black or African American	4,255	12.4%
Other race	3,274	9.5%
Asian	2,478	7.2%
American Indian / Alaska Native	460	1.3%
Native Hawaiian / Pacific Islander	198	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	37.8%	30.1%	32.6%
$50k – $100k	35.0%	28.5%	27.7%
$100k – $200k	24.7%	28.6%	26.4%
Over $200k	2.5%	12.9%	13.3%

Under $10k 2.9%

$10k–$15k 2.8%

$15k–$25k 8.5%

$25k–$35k 8.3%

$35k–$50k 9.4%

$50k–$75k 15.1%

$75k–$100k 14.4%

$100k–$150k 22.5%

$150k–$200k 9.2%

$200k+ 6.9%

Range	% of households
Under $10k	2.9%
$10k–$15k	2.8%
$15k–$25k	8.5%
$25k–$35k	8.3%
$35k–$50k	9.4%
$50k–$75k	15.1%
$75k–$100k	14.4%
$100k–$150k	22.5%
$150k–$200k	9.2%
$200k+	6.9%
Median income	$77,989

Housing

Home values

Under $50k 2.2%

$50k–$100k 1.9%

$100k–$150k 0.1%

$150k–$200k 0.2%

$200k–$300k 1.4%

$300k–$500k 22.5%

$500k–$1M 69.7%

$1M+ 1.9%

Housing overview

Metric	Value
Median home value	$593,300
Median rent / month	$1,693
Owner occupied	53.9%
Renter occupied	46.1%
Vacant	3.6%
Single-family detached	65.4%
Large apartment buildings	11.7%
Mobile homes	0.1%
Median rooms	4.9
Avg household size (owned)	3.10

Year built

Era	%
2020 or later	0.0%
2010–2019	4.3%
2000–2009	2.7%
1990–1999	9.6%
1980–1989	11.5%
1970–1979	18.7%
1960–1969	11.4%
1950–1959	29.4%
1940–1949	9.8%
1939 or earlier	2.5%

Bedrooms

Size	% of units
No bedroom (studio)	3.0%
1 bedroom	11.5%
2 bedrooms	30.0%
3 bedrooms	39.9%
4 bedrooms	13.3%
5+ bedrooms	2.3%

Vehicles per household

Vehicles	% of households
No vehicle	4.8%
1 vehicle	27.2%
2 vehicles	38.2%
3 or more	29.9%

Heating fuel

Fuel type	%
Utility gas	62.8%
Electricity	30.0%
Propane / LP gas	1.3%
Wood	0.3%
Solar	0.8%
No fuel used	4.8%

Households & families

Household type	Count	%
Married-couple family	4,301	46.8%
Cohabiting couple	640	7.0%
Male householder, no spouse	1,773	19.3%
Female householder, no spouse	2,468	26.9%
Households with children under 18	3,162	34.4%
Households with seniors (65+)	2,924	31.8%
Average household size	2.97

Marital status

Status	Male	Female
Never married	41.2%	35.8%
Married	45.5%	40.4%
Separated	0.7%	2.8%
Widowed	2.5%	5.5%
Divorced	10.0%	15.5%

Education

Less than 9th grade 6.5%

Some HS, no diploma 6.2%

HS graduate 26.3%

Some college, no degree 32.0%

Associate's degree 9.1%

Bachelor's degree 12.4%

Graduate / professional 7.5%

Metric	%
HS diploma or higher	87.3%
Bachelor's or higher	19.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	249	3.7%
Kindergarten	422	6.3%
Elementary school	2,416	36.0%
High school	1,718	25.6%
College / grad school	1,912	28.5%

Employment

Industry of employment

Education & healthcare 21.5%

Retail trade 14.8%

Construction 10.2%

Arts, food & hospitality 10.1%

Professional & management 9.9%

Other services 7.1%

Public administration 6.5%

Manufacturing 6.4%

Finance & real estate 5.2%

Transportation & utilities 5.0%

Information 1.8%

Wholesale trade 1.5%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	30.5%
Service	19.5%
Sales & office	25.8%
Natural resources & construction	11.2%
Production & transportation	12.9%

Employment type

Type	%
Private sector	73.7%
Government	17.4%
Self-employed	8.7%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	74.1%
Carpool	9.7%
Public transit	2.4%
Walk	1.1%
Work from home	11.9%
Other means	0.9%
Avg commute (minutes)	29.4

Poverty

All people 9.9%

Under 18 years 11.3%

18 and over 9.6%

Married-couple families 2.8%

Female-led households 19.5%

Income support

Source	% of households
Social Security	30.6%
Retirement income	24.7%
Supplemental Security	8.9%
Cash public assistance	3.2%
Food stamps / SNAP	12.5%

Health indicators

Condition	%
Obesity	32.0%
High blood pressure	30.2%
High cholesterol	29.1%
Diabetes	10.5%
Heart disease	5.5%
Stroke	3.0%
Asthma	10.0%
Arthritis	21.0%
Kidney disease	2.9%
Pulmonary disease	6.2%
Cancer	5.3%

Behavior / access	%
Smoking	13.8%
Binge drinking	18.2%
No physical activity	24.5%
Less than 7 hrs sleep	36.2%
Depression	18.1%
Fair or poor health	17.5%
Poor mental health	15.7%
Poor physical health	11.3%
No health insurance	15.5%
Visited doctor (checkup)	69.4%
Visited dentist	60.7%
Cholesterol screening	89.5%
Teeth loss	13.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,071	9.9%

Disability	%
Any disability	13.3%
Under 18	2.4%
18–64 years	10.4%
65 and over	42.8%

Health insurance coverage

Type	%
Private insurance	62.4%
Public insurance	42.0%
No insurance	8.1%
Uninsured under 19	5.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	26,061	94.6%
Spanish	2,824	10.8%
Other Indo-European	1,728	6.6%
Asian & Pacific Islander	102	0.4%
Other languages	629	2.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	22,852	83.0%
Born in same state	22,320	81.0%
Born in different state	17,461	63.4%
Foreign born	532	1.9%
Naturalized citizen	4,689	17.0%
Not a US citizen	2,893	61.7%

Ancestry

Ancestry	Count	%
Italian	1,305	4.7%
French	844	3.1%
Arab	667	2.4%
Dutch	155	0.6%
Polish	140	0.5%

Ancestry	Count	%
English	131	0.5%
German	28	0.1%
Irish	17	0.1%
Norwegian	12	0%

Technology access

Metric	% of households
Computer access	33.3%
Internet access	94.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 91945

What city is ZIP code 91945 in?

ZIP code 91945 is primarily assigned to Lemon Grove, California.

What county is ZIP code 91945 in?

ZIP code 91945 falls within San Diego County, California.

What is the typical home value in ZIP code 91945?

The median home value in ZIP code 91945 is $593,300.

Does ZIP code 91945 have a large veteran population?

10% of civilians in ZIP code 91945 are veterans, above the national average of ~7%.

What is the population of ZIP code 91945?

ZIP code 91945 has an estimated population of 27,541 residents, with a density of 6,967 people per square mile.

What is the median household income in ZIP code 91945?

The median household income in ZIP code 91945 is $77,989, above the national median of ~$75,000.

What timezone is ZIP code 91945 in?

ZIP code 91945 observes the PST timezone.