93451 ZIP Code — San Miguel, CA

San Luis Obispo County, California

ZIP code 93451 is located in San Miguel, California, within San Luis Obispo County. It covers approximately 447.22 square miles and serves a population of 4,751 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 805/820.

About ZIP code 93451

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $487,100. Owner-occupancy sits near the national average at 62%.

Median household income is $77,500. Poverty affects 20% of residents, above the national average. 31% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is natural resources, construction, and trades, with agriculture and mining as the leading industry. The average commute of 26 minutes is near the national average.

Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.

Notable community characteristics include Spanish spoken in 21% of households.

Overall, ZIP code 93451 reflects a community defined by economic challenges above the national average and a significant Social Security-dependent population.

4,751
population
447.22
sq mi land
Standard
ZIP type
Pacific (PT)
timezone
93451 ZIP code map
Cities in ZIP code 93451

Below are the cities the US Postal Service accepts for ZIP code 93451. Using any city not on this list may result in mail delivery delays.

City Status
San Miguel Acceptable
San Miguel Preferred
Demographics updated 05/2026
Population
Total population 4,751
Population density 11 / sq mi
State FIPS 06
County FIPS 079
Geography
Land area 447.22 sq mi
Water area 0.18 sq mi
Latitude 35.8810
Longitude -120.4727
Timezone Pacific (PT)
Area code 805/820
Total population by age
Gender
Race & ethnicity
Economics updated 05/2026
Household income
Income range This ZIP County avg State avg
Under $50k 26.9% 31.9% 32.6%
$50k – $100k 39.8% 29.7% 27.7%
$100k – $200k 27.2% 28.2% 26.4%
Over $200k 6.1% 10.2% 13.3%

Demographics & statistics

4,751
Population
11
People per sq mi
37.1
Median age
$77,500
Median household income
$31,930
Per capita income
$487,100
Median home value
$1,813
Median monthly rent
62.1%
Home ownership
19.9%
Poverty rate
5.7%
Unemployment
1,071
Housing units
23.8%
Bachelor's or higher

Age distribution

Male Female
78
Under 5
58
228
5–9
172
242
10–14
181
144
15–19
108
270
20–24
202
337
25–34
254
373
35–44
281
259
45–54
195
210
55–59
158
214
60–64
160
248
65–74
186
89
75–84
67
21
85+
16
← Male
Female →

Age summary

GroupCount%
Under 181,08622.9%
18 and over3,66577.1%
65 and over62713.2%
Median age37.1 years

Race & ethnicity

White 56.7%
Hispanic or Latino 16.8%
Other race 11%
American Indian / Alaska Native 7.2%
Two or more races 6.6%
Black or African American 0.9%
Asian 0.8%
GroupCount%
White3,23656.7%
Hispanic or Latino96116.8%
Other race62711%
American Indian / Alaska Native4137.2%
Two or more races3756.6%
Black or African American530.9%
Asian470.8%

Household income

Income range This ZIP County avg State avg
Under $50k 26.9% 31.9% 32.6%
$50k – $100k 39.8% 29.7% 27.7%
$100k – $200k 27.2% 28.2% 26.4%
Over $200k 6.1% 10.2% 13.3%
Under $10k 8.7%
$10k–$15k 0.8%
$15k–$25k 2.5%
$25k–$35k 5.5%
$35k–$50k 10.8%
$50k–$75k 20.6%
$75k–$100k 13.2%
$100k–$150k 23.3%
$150k–$200k 6.9%
$200k+ 7.7%
Range% of households
Under $10k8.7%
$10k–$15k0.8%
$15k–$25k2.5%
$25k–$35k5.5%
$35k–$50k10.8%
$50k–$75k20.6%
$75k–$100k13.2%
$100k–$150k23.3%
$150k–$200k6.9%
$200k+7.7%
Median income$77,500

Housing

Home values

Under $50k 3.4%
$50k–$100k 1.6%
$100k–$150k 2.5%
$150k–$200k 0.6%
$200k–$300k 7.6%
$300k–$500k 37.1%
$500k–$1M 33.8%
$1M+ 13.4%

Housing overview

MetricValue
Median home value$487,100
Median rent / month$1,813
Owner occupied62.1%
Renter occupied37.9%
Vacant6.6%
Single-family detached83.0%
Large apartment buildings0.1%
Mobile homes6.6%
Median rooms5.2
Avg household size (owned)2.72

Year built

Era%
2020 or later0.3%
2010–201913.1%
2000–200932.2%
1990–199915.7%
1980–198912.7%
1970–19795.7%
1960–19692.5%
1950–19597.1%
1940–19492.2%
1939 or earlier8.7%

Bedrooms

Size% of units
No bedroom (studio)1.3%
1 bedroom5.9%
2 bedrooms31.6%
3 bedrooms48.6%
4 bedrooms11.1%
5+ bedrooms1.5%

Vehicles per household

Vehicles% of households
No vehicle2.2%
1 vehicle16.1%
2 vehicles38.0%
3 or more43.7%

Heating fuel

Fuel type%
Utility gas23.1%
Electricity31.7%
Propane / LP gas27.0%
Wood9.0%
Solar4.0%
No fuel used1.2%

Households & families

Household typeCount%
Married-couple family96662.3%
Cohabiting couple1268.1%
Male householder, no spouse21613.9%
Female householder, no spouse24215.6%
Households with children under 1845129.1%
Households with seniors (65+)44828.9%
Average household size3.05

Marital status

StatusMaleFemale
Never married35.1%27.6%
Married58.3%54.3%
Separated0.0%0.0%
Widowed2.1%8.3%
Divorced4.6%9.8%

Education

Less than 9th grade 12.5%
Some HS, no diploma 7.6%
HS graduate 25.3%
Some college, no degree 21.6%
Associate's degree 9.1%
Bachelor's degree 18.7%
Graduate / professional 5.1%
Metric%
HS diploma or higher79.8%
Bachelor's or higher23.8%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool342.4%
Kindergarten674.8%
Elementary school61343.8%
High school32223.0%
College / grad school36325.9%

Employment

Industry of employment

Agriculture & mining 16.4%
Education & healthcare 13.5%
Professional & management 12.1%
Arts, food & hospitality 10.0%
Manufacturing 9.6%
Retail trade 9.0%
Construction 7.3%
Transportation & utilities 6.2%
Information 4.2%
Other services 3.4%
Wholesale trade 3.3%
Public administration 3.2%
Finance & real estate 1.8%

Occupation

Category%
Management, business & arts22.7%
Service25.1%
Sales & office17.0%
Natural resources & construction25.7%
Production & transportation9.5%

Employment type

Type%
Private sector73.3%
Government15.3%
Self-employed11.1%
Unpaid family workers0.3%

Commute

Method%
Drive alone69.5%
Carpool19.6%
Public transit0.0%
Walk1.8%
Work from home9.1%
Other means0.0%
Avg commute (minutes)26.1

Poverty

All people 19.9%
Under 18 years 33.8%
18 and over 15.8%
Married-couple families 12.8%
Female-led households 34.4%

Income support

Source% of households
Social Security31.3%
Retirement income20.2%
Supplemental Security8.3%
Cash public assistance1.2%
Food stamps / SNAP4.6%

Health indicators

Condition%
Obesity30.6%
High blood pressure26.7%
High cholesterol29.5%
Diabetes9.2%
Heart disease5.5%
Stroke2.6%
Asthma10.1%
Arthritis20.3%
Kidney disease2.6%
Pulmonary disease6.2%
Cancer5.5%
Behavior / access%
Smoking13.7%
Binge drinking20.1%
No physical activity20.5%
Less than 7 hrs sleep32.0%
Depression19.3%
Fair or poor health14.8%
Poor mental health15.6%
Poor physical health10.5%
No health insurance13.8%
Visited doctor (checkup)66.0%
Visited dentist65.2%
Cholesterol screening89.8%
Teeth loss11.7%

Veterans & disability

VeteransCount%
Civilian veterans1955.3%
Disability%
Any disability12.2%
Under 184.8%
18–64 years10.8%
65 and over31.6%

Health insurance coverage

Type%
Private insurance55.3%
Public insurance43.6%
No insurance12.7%
Uninsured under 197.5%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only4,61597.1%
Spanish98121.3%
Other Indo-European87018.9%
Asian & Pacific Islander30.1%
Other languages300.7%

Place of birth & citizenship

OriginCount%
Native born (US)3,34770.4%
Born in same state3,34770.4%
Born in different state2,72557.4%
Foreign born00.0%
Naturalized citizen1,40429.6%
Not a US citizen31622.5%

Ancestry

AncestryCount%
French4549.6%
Italian2725.7%
Arab1062.2%
English921.9%
Norwegian841.8%
AncestryCount%
Dutch210.4%
Polish160.3%
German80.2%
Irish50.1%

Technology access

Metric% of households
Computer access32.6%
Internet access98.3%

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

Frequently asked questions about ZIP code 93451

What city is ZIP code 93451 in?

ZIP code 93451 is primarily assigned to San Miguel, California.

What county is ZIP code 93451 in?

ZIP code 93451 falls within San Luis Obispo County, California.

Is Spanish widely spoken in ZIP code 93451?

Approximately 21% of households in ZIP code 93451 speak Spanish as a primary language.

What is the poverty rate in ZIP code 93451?

20% of residents in ZIP code 93451 live below the poverty line, above the national average.

What is the typical home value in ZIP code 93451?

The median home value in ZIP code 93451 is $487,100.

What is the population of ZIP code 93451?

ZIP code 93451 has an estimated population of 4,751 residents, with a density of 11 people per square mile.

What timezone is ZIP code 93451 in?

ZIP code 93451 observes the PST timezone.

Need the complete ZIP code database? Download all 42,000+ US ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →