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Sangamon County, IL — 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. 33 ZIP codes analyzed.

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

Measured density: Range spans bands — 0.92× the U.S. rate (between 0.92× and 1.65× 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. 28 ZIP cells in this county are withheld, 20 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

Range spans the U.S. rate   Sangamon County gas stations — 92–165% of the U.S. rate

50 gas stations are counted in Sangamon County — 2.2 per 10,000 people present (residents + daytime workers), 92% 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 4% between 2015 and 2023 (48 → 50). 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 62707 (Springfield), 62702 (Springfield), 62703 (Springfield) — well above the national rate. On measured density alone, the lowest-density residential ZIPs with a published count are 62704 (Springfield), 62629 (Chatham), 62703 (Springfield).

Census County Business Patterns (2023) puts the county-wide count at 58 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: Sangamon County sits at 92% of the U.S. rate for gas stations. 20 ZIPs with population have no published count (each 0–2 businesses), so the true per-capita rate is between 92% and 165% of the U.S. rate. Why. The highest measured density is in 62707 and 62702; the lowest measured density is in 62704 and 62629.

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
50–106
published count; upper bound counts each withheld ZIP cell as 2 (28 cells) (2023)
Per 10,000 present
2.2
residents + daytime workers
U.S. average
2.4
per 10,000 present
County index
0.92×
vs. U.S.
Latest year (CBP)
58
2023 — $16M annual payroll
Residents
194,839
25 ZIPs with data
Workers
70,812
jobs located in county

Is the area growing?

Population
194,345
Census PEP, July 1 2024
Change since 2020
−1.0%
−1,878 people
Net migration 2024
+266
international +821, domestic −555
Jobs located here
129,053
LODES 2022, +2.9% since 2019

Sangamon County had an estimated 194,345 residents on July 1, 2024 — 1.0% fewer than in 2020 (−1,878). In the latest year it gained 129 people: births minus deaths −139, international migration +821, domestic migration −555. Components are published separately and may not sum exactly.

129,053 jobs were located in the county in 2022 (+2.9% since 2019), and 89,026 employed residents lived there (−1.9% 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 →

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 4% since 2015

Number of gas stations in Sangamon 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.

48
2015
52
2018
50
2020
52
2021
51
2022
50
2023

Highest measured density

ZIP
vs. U.S. average
Index
62707 Springfield
253%
62702 Springfield
228%
62703 Springfield
139%
62629 Chatham
78%
62704 Springfield
76%

Lowest measured density

ZIP
vs. U.S. average
Index
62704 Springfield
76%
62629 Chatham
78%
62703 Springfield
139%
62702 Springfield
228%
62707 Springfield
253%
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.

Employment hubs & destinations

These ZIPs have far more workers (or visitors) than residents, so their counts are driven by daytime and visitor demand — not a place to read "shortage" from resident numbers alone.

ZIPNeighborhoodType ResidentsWorkersGas stationsIndex
62701Springfield Employment hub 1,2053,610 0–2 —

Scroll the table sideways to see all columns.

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
62707Springfield 7,4725,048 6 6.0 253% Very high density
62702Springfield 31,03311,909 20 5.4 228% High density
62703Springfield 28,92215,002 12 3.3 139% Above average
62629Chatham 15,4131,572 3 1.9 78% Below average
62704Springfield 40,04619,334 9 1.8 76% Below average
62515Buffalo 90273 0–2 — — Not published
62520Dawson 1,65266 0–2 — — Not published
62530Divernon 1,558103 0–2 — — Not published
62536Glenarm 1,049104 0–2 — — Not published
62539Illiopolis 1,41269 0–2 — — Not published
62545Mechanicsburg 1,101114 0–2 — — Not published
62558Pawnee 3,639333 0–2 — — Not published
62561Riverton 4,842391 0–2 — — Not published
62563Rochester 5,766569 0–2 — — Not published
62615Auburn 5,198872 0–2 — — Not published
62625Cantrall 1,00310 0–2 — — Not published
62661Loami 1,21246 0–2 — — Not published
62670New Berlin 2,682340 0–2 — — Not published
62677Pleasant Plains 2,149243 0–2 — — Not published
62684Sherman 5,760825 0–2 — — Not published
62689Thayer 54213 0–2 — — Not published
62693Williamsville 1,677426 0–2 — — Not published
62701Springfield 1,2053,610 0–2 — — Not published
62705Springfield —66 0–2 — — Not published
62706Springfield 0166 0–2 — — Not published
62708Springfield —202 0–2 — — Not published
62711Springfield 18,5598,408 0–2 — — Not published
62712Springfield 10,0451,332 0–2 — — Not published
62764Springfield —73 0–2 — — Not published
62769Springfield —2,636 0–2 — — Not published
62781Springfield —4,690 0–2 — — Not published
62791Springfield —42 0–2 — — Not published
62794Springfield —29 0–2 — — Not published

Scroll the table sideways to see all columns.

Find an actual space in Springfield

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 Springfield retail space →
Crexi
Free listings + market data
Browse Springfield retail space →
CityFeet
Retail space for lease
Browse Springfield 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 Sangamon 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: 58 establishments and $16M 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.