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San Diego County, CA

Pick an industry to see how saturated it is across San Diego County's ZIP codes, compared with the U.S. average. All figures use Census ZBP 2023 + ACS 2024.

Nail salons

562–764 in San Diego County
166–193%
of U.S. average High density

Dentists

1,911–2,093 in San Diego County
143–149%
of U.S. average Above average

Gyms

551–761 in San Diego County
135–159%
of U.S. average Range spans bands

Coffee shops

1,111–1,289 in San Diego County
133–141%
of U.S. average Above average

Fast food

3,063–3,225 in San Diego County
115–117%
of U.S. average Above average

Clothing stores

306–576 in San Diego County
111–169%
of U.S. average Range spans bands

Day care

876–1,056 in San Diego County
109–117%
of U.S. average Above average

Restaurants

2,636–2,806 in San Diego County
104–106%
of U.S. average Above average

Pet care

260–494 in San Diego County
104–152%
of U.S. average Range spans bands

Beauty salons

823–1,021 in San Diego County
100–110%
of U.S. average Range spans bands

Grocery stores

553–749 in San Diego County
89–103%
of U.S. average Range spans bands

Auto repair

278–538 in San Diego County
81–124%
of U.S. average Range spans bands

Bars

312–570 in San Diego County
78–114%
of U.S. average Range spans bands

Car washes

140–410 in San Diego County
72–153%
of U.S. average Range spans bands

Convenience stores

235–493 in San Diego County
65–105%
of U.S. average Range spans bands

Pharmacies

248–488 in San Diego County
60–92%
of U.S. average Below average

Population, migration, and jobs

Population
3,298,799
Census PEP, July 1 2024
Change since 2020
−0.1%
−2,383 people
Net migration 2024
+292
international +24,226, domestic −23,934
Jobs located here
1,490,975
LODES 2022, +2.8% since 2019
Employed residents
1,505,114
LODES 2022, +2.6% since 2019
Net movers (IRS)
−26,865
tax year 2021–2022: 112,882 in, 139,747 out

Population. Census estimates 3,298,799 residents on July 1, 2024, 0.1% below 2020 (−2,383).

Latest year (2023→2024): births minus deaths +12,667, international migration +24,226, domestic migration −23,934. These are model-based estimates built from births, deaths, and migration, revised annually — not a census count, and they can differ from the ACS 5-year figure used elsewhere on the site. Components may not sum exactly because of rounding.

Jobs. LODES counts 1,490,975 jobs located in the county in 2022 (+2.8% since 2019) and 1,505,114 employed residents (+2.6% since 2019). A job and a worker are not the same thing: the first is measured at the workplace, the second at the home address, and one person can hold two jobs. Self-employed, military, and informal work are excluded.

Where movers come from and go. IRS matched individual tax returns between 2021 and 2022. 112,882 people (exemptions) moved into San Diego County, reporting $7.27B in adjusted gross income; 139,747 moved out, reporting $7.69B. Net: −26,865 people.

Largest sources: Los Angeles, CA (9,731) · Riverside, CA (8,464) · Orange, CA (5,939). Largest destinations: Riverside, CA (14,864) · Los Angeles, CA (7,113) · Orange, CA (4,901).

People are exemptions on matched returns — not a population estimate. Non-filers, dependents claimed elsewhere, and people whose address did not change are treated differently than in Census estimates. Tax data lag about two years.

Each source is reported at its own geography and year. None of them measures demand for a specific business type; they describe whether the local customer base and job base are expanding or shrinking. Definitions and limits →

ZIP gaining residents
2015–19 → 2020–24
Change
92101 San Diego
+25.9%
92108 San Diego
+20.2%
92071 Santee
+3.3%
ZIP losing residents
2015–19 → 2020–24
Change
92140 San Diego
−45.5%
92113 San Diego
−17.5%
92118 Coronado
−16.1%

ACS 5-year estimates for 2015–2019 and 2020–2024. Only ZIPs with at least 2,000 residents in both windows and a change larger than the survey margin of error (90%) are listed — small ZIPs move a lot on paper without a real signal.

ZIP change

Only ZIPs where the 2015–19→2020–24 population change is larger than the ACS margin of error and both windows have at least 2,000 residents. Sorted by population change. Jobs are LODES workplace jobs in the ZIP (2019→latest available year; 2019→2021 for Michigan, none for Alaska); a ZIP can contain more jobs than residents.

ZIPNeighborhood Residents 2015–19Residents 2020–24Pop change JobsJobs change
92101San Diego 41,15951,805 +25.9% 89,791−5.3%
92108San Diego 22,28026,790 +20.2% 52,060+0.2%
92071Santee 57,71059,590 +3.3% 18,722+9.0%
91945Lemon Grove 27,23627,745 +1.9% 7,183−3.7%
92064Poway 49,80548,683 −2.3% 33,402+5.4%
91932Imperial Beach 26,49225,741 −2.8% 3,323+7.2%
91950National City 62,85959,891 −4.7% 22,683−9.9%
92075Solana Beach 12,75211,944 −6.3% 7,607−11.0%
92126San Diego 82,65876,059 −8.0% 22,714+4.6%
92154San Diego 88,97980,445 −9.6% 24,270+17.2%
92111San Diego 50,69345,249 −10.7% 43,442−6.1%
92102San Diego 44,01038,901 −11.6% 10,500+3.8%
92118Coronado 22,54818,929 −16.1% 9,026+8.4%
92113San Diego 58,40848,215 −17.5% 12,445−17.8%
92140San Diego 3,7372,038 −45.5% 211+3.4%

Scroll the table sideways to see all columns.

How to read these numbers

Each percentage is the county's density of that business type per 10,000 people present (residents + 0.5×workers), divided by the U.S. average. 100% = exactly average.

Density is a supply-side signal. It does not measure foot traffic, income, tourism, or whether locals actually want more of a given business.

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BizGapMap — free, no-login small-business saturation reports for major U.S. counties. Built entirely from public U.S. Census, BLS, and IRS data (ZBP 2023, ACS 2024 5-year, PEP 2024, LODES, QCEW, IRS SOI). No forecasts, no revenue guesses — withheld cells are marked, and the few derived counts are labelled as estimates.