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St. Lucie County, FL — Gas stations Saturation

How many gas stations exist per person present — residents plus daytime workers — by ZIP code, compared with the U.S. average. Establishment data: Census ZBP 2023. Population: ACS 2024 5-year. 19 ZIP codes analyzed.

Includes: Gas stations with a convenience store · Fuel + mart locations. Counted together because official statistics use one 447110 code.

Measured density: Below average — 0.78× the U.S. rate (between 0.78× and 0.86× once withheld ZIP cells are counted)

Why a range: Census does not publish a ZIP-by-industry count when that ZIP has 0–2 businesses. 9 ZIP cells in this county are withheld, 4 of them with residents. Each could hold 0, 1, or 2 businesses: counting them all as 0 gives the low end, counting them all as 2 gives the high end — the data cannot say where the truth sits. The density range uses only the populated cells, since ZIPs without residents are excluded from per-person rates. How ranges work

Below the U.S. rate   St. Lucie County gas stations — 78–86% of the U.S. rate

72 gas stations are counted in St. Lucie County — 1.8 per 10,000 people present (residents + daytime workers), 78% of the U.S. rate of 2.4.

On the comparable ZIP set (ZIPs with a published count in every year), the total has risen 11% between 2015 and 2023 (56 → 62). That set is smaller than today's county total. 2020–2021 were pandemic-distorted, and Census rounds counts, so small moves are within noise.

Measured supply density is highest in 34947 (Fort Pierce), 34981 (Fort Pierce), 34945 (Fort Pierce) — well above the national rate. On measured density alone, the lowest-density residential ZIPs with a published count are 34953 (Port Saint Lucie), 34986 (Port Saint Lucie), 34983 (Port Saint Lucie).

Census County Business Patterns (2023) puts the county-wide count at 79 establishments, including locations in ZIP codes that do not map to a ZCTA — so it can run slightly above the sum of the ZIP rows on this page. It is annual, so it lags more than QCEW.

Measured density: St. Lucie County sits at 78% of the U.S. rate for gas stations. 4 ZIPs with population have no published count (each 0–2 businesses), so the true per-capita rate is between 78% and 86% of the U.S. rate. Why. The highest measured density is in 34947 and 34981; the lowest measured density is in 34953 and 34986.

This is a supply-side read: it counts existing gas stations and the people present, not foot traffic, income, rent, or whether locals want more. Treat low density as a question to check, not an answer.

Gas stations
72–90
published count; upper bound counts each withheld ZIP cell as 2 (9 cells) (2023)
Per 10,000 present
1.8
residents + daytime workers
U.S. average
2.4
per 10,000 present
County index
0.78×
vs. U.S.
Latest year (CBP)
79
2023 — $20M annual payroll
Residents
355,354
14 ZIPs with data
Workers
72,740
jobs located in county

Is the area growing?

Population
390,670
Census PEP, July 1 2024
Change since 2020
+17.9%
+59,209 people
Net migration 2024
+14,857
international +3,223, domestic +11,634
Jobs located here
86,137
LODES 2022, +7.2% since 2019

St. Lucie County had an estimated 390,670 residents on July 1, 2024 — 17.9% more than in 2020 (+59,209). In the latest year it gained 14,484 people: births minus deaths −367, international migration +3,223, domestic migration +11,634. Components are published separately and may not sum exactly.

86,137 jobs were located in the county in 2022 (+7.2% since 2019), and 136,983 employed residents lived there (+10.6% since 2019). LODES counts wage and salary jobs covered by unemployment insurance plus federal jobs; it excludes the self-employed and military, and counts jobs rather than unique people. 2019→2022 spans the pandemic, so read it as one change, not a trend.

Population and migration say whether the customer base is growing. They do not say whether people want another business of this type. Definitions and limits →  ·  Full county detail →

ZIP gaining residents
2015–19 → 2020–24
Change
34987 Port Saint Lucie
+123.6%
34984 Port Saint Lucie
+25.7%
34982 Fort Pierce
+23.9%
ZIP losing residents
2015–19 → 2020–24
Change

No ZIP had a statistically significant decrease.

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.

Nonemployer businesses

Not shown. Census publishes gasoline stations only as a broader 2022 grouping (NAICS 4571) that also includes other fuel retailers, so a convenience-store-gas-station-only nonemployer count is not published.

Census Nonemployer Statistics 2024 (NAICS 2022). We do not approximate this figure.

Saturation map

Each ZIP area is shaded by its density of this business type per person present (residents + workers) vs. the U.S. average. Click any ZIP to zoom to its boundary, see its numbers, and switch to aerial imagery. Individual mapped shops appear as dots at street level — Show locations zooms you in to them (scroll or double-click to zoom).

Basemap:
Under 50% 50–100% 100–150% 150–250% 250%+ 0–2 (not published) / no data ZIP total (dot size) Mapped shop (OpenStreetMap, street level)

Map data © OpenStreetMap contributors, tiles by OpenFreeMap.

White dots are ZIP totals from the official Census count — the bigger the dot, the more gas stations in that ZIP. They are aggregated, not individual shops. Turquoise dots are individual locations mapped in OpenStreetMap, shown only at street level; they are crowd-sourced and indicative, may be incomplete, and do not equal the official counts. Only the official ZIP totals feed the saturation index.

Market trend — up 11% since 2015

Number of gas stations in St. Lucie County across 2015–2023, on a consistent set of ZIP codes present in every year — so changes are real, not ZIP-boundary artifacts. 2015/2018 are pre-pandemic baselines; 2020/2021 are COVID-distorted.

56
2015
67
2018
69
2020
67
2021
64
2022
62
2023

Highest measured density

ZIP
vs. U.S. average
Index
34947 Fort Pierce
370%
34981 Fort Pierce
289%
34945 Fort Pierce
270%
34952 Port Saint Lucie
105%
34982 Fort Pierce
98%
34984 Port Saint Lucie
78%
34950 Fort Pierce
61%
34983 Port Saint Lucie
58%
34986 Port Saint Lucie
57%
34953 Port Saint Lucie
47%

Lowest measured density

ZIP
vs. U.S. average
Index
34953 Port Saint Lucie
47%
34986 Port Saint Lucie
57%
34983 Port Saint Lucie
58%
34950 Fort Pierce
61%
34984 Port Saint Lucie
78%
34982 Fort Pierce
98%
34952 Port Saint Lucie
105%
34945 Fort Pierce
270%
34981 Fort Pierce
289%
34947 Fort Pierce
370%
Low measured density is not evidence of opportunity. A ZIP with few gas stations may simply lack foot traffic, retail space, or demand. We rank only residential and mixed ZIPs here; employment hubs and visitor destinations are listed separately below. ZIPs where Census did not publish a count (0–2 businesses) are not ranked: they may be the least served of all, but the data cannot tell 0 from 1 or 2. Verify those locally.

All ZIP codes

Click a column header to sort. Index = gas stations per 10,000 people present (residents + 0.5×workers) ÷ the U.S. average. 100% = exactly average.

ZIPNeighborhood ResidentsWorkersGas stations Per 10kIndexStatus
34947Fort Pierce 12,8044,060 13 8.8 370% Very high density
34981Fort Pierce 5,0314,522 5 6.9 289% Very high density
34945Fort Pierce 6,3212,978 5 6.4 270% Very high density
34952Port Saint Lucie 42,65511,314 12 2.5 105% Above average
34982Fort Pierce 31,1436,232 8 2.3 98% Below average
34984Port Saint Lucie 20,1512,694 4 1.9 78% Below average
34950Fort Pierce 17,4616,364 3 1.5 61% Below average
34983Port Saint Lucie 49,0013,176 7 1.4 58% Below average
34986Port Saint Lucie 30,71512,582 5 1.4 57% Below average
34953Port Saint Lucie 86,8756,013 10 1.1 47% Far below average
34946Fort Pierce 6,8523,677 0–2 — — Not published
34948Fort Pierce —49 0–2 — — Not published
34949Fort Pierce 7,470936 0–2 — — Not published
34951Fort Pierce 17,1481,644 0–2 — — Not published
34954Fort Pierce —94 0–2 — — Not published
34979Fort Pierce —6 0–2 — — Not published
34985Port Saint Lucie —35 0–2 — — Not published
34987Port Saint Lucie 21,7276,548 0–2 — — Not published
34988Port Saint Lucie —10 0–2 — — Not published

Scroll the table sideways to see all columns.

Find an actual space in Port Saint Lucie

The numbers above tell you how the market looks. To find a specific storefront, these marketplaces list available retail space for lease.

LoopNet
Largest commercial marketplace
Browse Port Saint Lucie retail space →
Crexi
Free listings + market data
Browse Port Saint Lucie retail space →
CityFeet
Retail space for lease
Browse Port Saint Lucie retail space →

Open vacancy data (actual empty units) is only published by some cities; where it exists we show it directly. Listings above are third-party.

Census withholds some ZIP-by-industry cells to protect small businesses. 0–2 means the cell was not published (Census publishes industry counts only at 3+ per ZIP), so the ZIP is left unranked rather than counted as zero. ~ means the count is estimated from the broader industry group and can be off by a business or two.

Follow St. Lucie County and gas stations

When a data vintage changes or a section of this report is revised, we post it to a public update feed. No email address, no account, no tracking — and nothing is sent unless something actually changed.

Subscribe to updates (RSS) How these numbers are built →

Methodology & sources

Establishments. U.S. Census ZIP Code Business Patterns (ZBP 2023), NAICS 447110 — gasoline stations with convenience stores. Counts establishments with paid employees. ZBP is published annually with a ~2-year lag.

Fresh county signal. This industry has no clean QCEW series, so the freshest county signal is Census County Business Patterns 2023: 79 establishments and $20M in annual payroll county-wide. This count includes locations in ZIP codes that do not map to a ZCTA, so it can be slightly higher than the sum of the ZIP rows. CBP is annual and slower than QCEW. It cannot be broken down by ZIP.

Population. U.S. Census American Community Survey 2024 5-year ZCTA population (table B01003). Workers are the ZIP's total employment from the same 2023 ZBP file.

Demand ("people present"). Demand comes from residents and daytime workers: residents + 0.5 × workers. This is the single documented assumption in the model and can be tuned.

Index. index = (ZIP establishments ÷ ZIP demand × 10,000) ÷ the U.S. average for this industry (2.37 per 10,000 present). It is a supply-side density measure; it does not capture income, rent, tourism, or whether locals actually want more.

Read the full methodology →  ·  Data sources & vintages →

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.