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Gwinnett County, GA — Grocery stores Saturation

How many grocery stores 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. 25 ZIP codes analyzed.

Includes: Supermarkets · Grocery stores · Neighborhood food markets. Counted together because official statistics use one 445110 code.

Measured density: Above average — 1.03× the U.S. rate (between 1.03× and 1.04× 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. 10 ZIP cells in this county are withheld, 1 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

In line with the U.S. rate   Gwinnett County grocery stores — 103–104% of the U.S. rate

173 grocery stores are counted in Gwinnett County — 1.6 per 10,000 people present (residents + daytime workers), 103% of the U.S. rate of 1.6.

On the comparable ZIP set (ZIPs with a published count in every year), the total has risen 23% between 2015 and 2023 (137 → 168). 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 30093 (Norcross), 30047 (Lilburn), 30096 (Duluth) — well above the national rate. On measured density alone, the lowest-density residential ZIPs with a published count are 30519 (Buford), 30078 (Snellville), 30043 (Lawrenceville).

BLS QCEW puts the latest county-wide count (2026 Q1) at 183 establishments, the freshest available signal.

Measured density: Gwinnett County sits at 103% of the U.S. rate for grocery stores. 1 ZIPs with population have no published count (each 0–2 businesses), so the true per-capita rate is between 103% and 104% of the U.S. rate. Why. The highest measured density is in 30093 and 30047; the lowest measured density is in 30519 and 30078.

This is a supply-side read: it counts existing grocery stores 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.

Grocery stores
173–193
published count; upper bound counts each withheld ZIP cell as 2 (10 cells) (2023)
Per 10,000 present
1.6
residents + daytime workers
U.S. average
1.6
per 10,000 present
County index
1.03×
vs. U.S.
Latest quarter (QCEW)
183
2026 Q1 — county total
Residents
905,470
16 ZIPs with data
Workers
352,263
jobs located in county

Is the area growing?

Population
1,003,869
Census PEP, July 1 2024
Change since 2020
+4.7%
+45,491 people
Net migration 2024
+5,987
international +12,945, domestic −6,958
Jobs located here
386,977
LODES 2022, +2.8% since 2019

Gwinnett County had an estimated 1,003,869 residents on July 1, 2024 — 4.7% more than in 2020 (+45,491). In the latest year it gained 12,267 people: births minus deaths +6,198, international migration +12,945, domestic migration −6,958. Components are published separately and may not sum exactly.

386,977 jobs were located in the county in 2022 (+2.8% since 2019), and 406,746 employed residents lived there (+3.0% 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
30519 Buford
+25.8%
30078 Snellville
+16.8%
30044 Lawrenceville
+13.8%
ZIP losing residents
2015–19 → 2020–24
Change
30093 Norcross
−17.6%

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 grocery stores only combined with convenience stores in this dataset, so a grocery-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 grocery stores 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 23% since 2015

Number of grocery stores in Gwinnett 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.

137
2015
143
2018
154
2020
161
2021
159
2022
168
2023

Highest measured density

ZIP
vs. U.S. average
Index
30093 Norcross
226%
30047 Lilburn
187%
30096 Duluth
145%
30071 Norcross
131%
30092 Peachtree Corners
111%
30024 Suwanee
107%
30019 Dacula
102%
30044 Lawrenceville
97%
30046 Lawrenceville
89%
30039 Snellville
82%
30518 Buford
80%
30045 Lawrenceville
65%
30043 Lawrenceville
61%
30078 Snellville
53%
30519 Buford
47%

Lowest measured density

ZIP
vs. U.S. average
Index
30519 Buford
47%
30078 Snellville
53%
30043 Lawrenceville
61%
30045 Lawrenceville
65%
30518 Buford
80%
30039 Snellville
82%
30046 Lawrenceville
89%
30044 Lawrenceville
97%
30019 Dacula
102%
30024 Suwanee
107%
30092 Peachtree Corners
111%
30071 Norcross
131%
30096 Duluth
145%
30047 Lilburn
187%
30093 Norcross
226%
Low measured density is not evidence of opportunity. A ZIP with few grocery stores 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 = grocery stores per 10,000 people present (residents + 0.5×workers) ÷ the U.S. average. 100% = exactly average.

ZIPNeighborhood ResidentsWorkersGrocery stores Per 10kIndexStatus
30093Norcross 46,41020,853 20 3.5 226% High density
30047Lilburn 70,12111,181 22 2.9 187% High density
30096Duluth 71,73251,044 22 2.3 145% Above average
30071Norcross 25,83036,957 9 2.0 131% Above average
30092Peachtree Corners 36,99241,517 10 1.7 111% Above average
30024Suwanee 88,06740,698 18 1.7 107% Above average
30019Dacula 51,16210,879 9 1.6 102% Above average
30044Lawrenceville 101,4759,478 16 1.5 97% Below average
30046Lawrenceville 41,85017,398 7 1.4 89% Below average
30039Snellville 52,7834,601 7 1.3 82% Below average
30518Buford 57,91228,222 9 1.2 80% Below average
30045Lawrenceville 44,9939,560 5 1.0 65% Below average
30043Lawrenceville 87,92935,878 10 0.9 61% Below average
30078Snellville 41,59714,318 4 0.8 53% Below average
30519Buford 59,99716,260 5 0.7 47% Far below average
30003Norcross —19 0–2 — — Not published
30010Norcross —18 0–2 — — Not published
30017Grayson 26,6203,419 0–2 — — Not published
30042Lawrenceville —259 0–2 — — Not published
30048Lilburn —147 0–2 — — Not published
30049Lawrenceville —383 0–2 — — Not published
30091Norcross —827 0–2 — — Not published
30095Duluth —91 0–2 — — Not published
30099Duluth —2,621 0–2 — — Not published
30515Buford —355 0–2 — — Not published

Scroll the table sideways to see all columns.

Find an actual space in Duluth

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 Duluth retail space →
Crexi
Free listings + market data
Browse Duluth retail space →
CityFeet
Retail space for lease
Browse Duluth 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 Gwinnett County and grocery stores

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 445110 — supermarkets & other grocery stores. Counts establishments with paid employees. ZBP is published annually with a ~2-year lag.

Fresh county signal. BLS QCEW (quarterly) is newer than ZBP — 2026 Q1 shows 183 establishments county-wide for this industry. 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 (1.55 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.