93453 ZIP Code, Santa Margarita, CA
93453 is a ZIP code in Santa Margarita, California in San Luis Obispo County. It covers 691 square miles of land. The closest ZIP codes are 93420, 93444 and 93432. 2,344 people live here in 1,189 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (61% own). Median household income is $78,288, below the California median of $99,122; the median age is 54.5, older than most ZIP codes.
Quick facts
- Mailing city: Santa Margarita, CA
- County: San Luis Obispo County
- Land area: 691 sq mi
- Population: 2,344
- Median household income: $78,288
- Carrier routes: 2 (747 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 2,344 |
| Households | 1,189 |
| Median household income | $78,288 |
| Income per person | $67,034 |
| Median age | 54.5 |
| Homeowners | 60.8% |
| Median home value | $710,000 |
| Median rent | not published |
| Bachelor's degree or higher | 36.0% |
| Average commute (minutes) | 20.6 |
| Households with kids under 18 | 14.1% |
| Moved in the past year | 4.8% |
| Below the poverty line | 5.5% |
| Broadband internet | 81.6% |
| Speak a non-English language at home | 9.2% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.6% |
| $10–15K | 1.6% |
| $15–25K | 21.5% |
| $25–35K | 2.6% |
| $35–50K | 15.0% |
| $50–75K | 7.5% |
| $75–100K | 7.8% |
| $100–150K | 11.7% |
| $150–200K | 9.9% |
| $200K+ | 21.8% |
Age
| % of all residents | Value |
|---|---|
| <10 | 6.9% |
| 10–19 | 4.5% |
| 20–24 | 2.0% |
| 25–34 | 14.9% |
| 35–44 | 12.5% |
| 45–54 | 11.9% |
| 55–64 | 15.7% |
| 65–74 | 18.7% |
| 75+ | 12.6% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 30.7% |
| Owned outright | 24.5% |
| Rented | 35.6% |
| Vacant | 9.2% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 58.8% |
| Townhome | 10.4% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 30.8% |
Businesses in 93453
55 business establishments with 291 employees (ZIP Codes Business Patterns 2023).
- Construction: 12
- Retail Trade: 9
- Accommodation and Food Services: 7
- Transportation and Warehousing: 4
- Real Estate and Rental and Leasing: 3
- Other Services (except Public Administration): 3
EDDM carrier routes
93453 has 2 USPS carrier routes with 747 residential and 17 business mailboxes. Open the EDDM route map.
Carrier routes in 93453
93453 has 2 USPS carrier routes (2 highway contract (H)) with 747 residential and 17 business mailboxes. Routes range from 325 homes (H069) to 422 homes (H070); the median route has 374 homes. The Census counted 1,189 households in 93453 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 2 |
| 500–749 | 0 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 93453 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route H070 — USPS business mailboxes 13, 422 homes
- Route H069 — USPS business mailboxes 4, 325 homes
Select these 2 routes on the route map
Every carrier route in 93453
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| H069 | Highway contract | 325 | 4 | $122,009 | — | — | — |
| H070 | Highway contract | 422 | 13 | $111,604 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 93453 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
- 93420 — Arroyo Grande city, CA (15.2 mi)
- 93444 — Nipomo CDP, CA (21.4 mi)
- 93432 — Creston CDP, CA (22.1 mi)
- 93454 — Santa Maria city, CA (22.1 mi)
- 93401 — San Luis Obispo city, CA (22.4 mi)
- 93433 — Grover Beach city, CA (24.1 mi)
Areas that include 93453
- Santa Margarita, CA ZIP codes — 1 ZIP code
- San Luis Obispo County ZIP codes — 26 ZIP codes
- California ZIP code data
Where it ranks
Mail every home in 93453
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) 93453, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 93453 in?
- 93453 is a Santa Margarita, CA mailing address. None of its land lies inside a Census-defined city or community.
- What county is 93453 in?
- 93453 is in San Luis Obispo County.
- What is the population of 93453?
- About 2,344 people (±642), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 3,045.
- What is the median household income in 93453?
- $78,288 (±$56,495), 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 93453?
- 2 USPS carrier routes with 747 residential and 17 business mailboxes (764 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 93453?
- The closest, measured center to center: 93420 (15.2 mi, Arroyo Grande), 93444 (21.4 mi, Nipomo), 93432 (22.1 mi, Creston), 93454 (22.1 mi, Santa Maria), 93401 (22.4 mi, San Luis Obispo) and 93433 (24.1 mi, Grover Beach).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.