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Gwinnett County, GA — Chiropractors Saturation

How many chiropractors 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: Chiropractic offices · Chiropractic clinics. Counted together because official statistics use one 621310 code.

Measured density: Above average — 1.33× the U.S. rate (between 1.33× and 1.35× 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

Above the U.S. rate   Gwinnett County chiropractors — 133–135% of the U.S. rate

142 chiropractors are counted in Gwinnett County — 1.3 per 10,000 people present (residents + daytime workers), 133% of the U.S. rate of 1.0.

On the comparable ZIP set (ZIPs with a published count in every year), the total has risen 28% between 2015 and 2023 (109 → 139). 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 30096 (Duluth), 30078 (Snellville), 30071 (Norcross) — well above the national rate. On measured density alone, the lowest-density residential ZIPs with a published count are 30039 (Snellville), 30044 (Lawrenceville), 30519 (Buford).

Census County Business Patterns (2023) puts the county-wide count at 149 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: Gwinnett County sits at 133% of the U.S. rate for chiropractors. 1 ZIPs with population have no published count (each 0–2 businesses), so the true per-capita rate is between 133% and 135% of the U.S. rate. Why. The highest measured density is in 30096 and 30078; the lowest measured density is in 30039 and 30044.

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

Chiropractors
142–162
published count; upper bound counts each withheld ZIP cell as 2 (10 cells) (2023)
Per 10,000 present
1.3
residents + daytime workers
U.S. average
1.0
per 10,000 present
County index
1.33×
vs. U.S.
Latest year (CBP)
149
2023 — $20M annual payroll
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 (no paid employees)

Nonemployer businesses
99
no paid employees (2024)
Receipts
$8.0M
published gross receipts
Receipts per business
$80K
gross, not profit

Census Nonemployer Statistics counts businesses with no paid employees — a separate universe from the employer establishments counted above; a business is in one or the other, never both. They are not storefronts by definition: many are home-based, mobile, or part-time.

We show them beside the density index, not inside it. In categories such as nail and beauty salons, child care, and pet care, one-person businesses can outnumber employer establishments, so the employer-only count understates how many businesses exist. That is not evidence of higher demand.

Receipts are gross revenue reported for these businesses — not profit, and not the size of the local market. Census publishes this only at county level, so it is not shown on the ZIP map. See methodology.

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 chiropractors 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 28% since 2015

Number of chiropractors 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.

109
2015
133
2018
129
2020
129
2021
135
2022
139
2023

Highest measured density

ZIP
vs. U.S. average
Index
30096 Duluth
261%
30078 Snellville
229%
30071 Norcross
206%
30024 Suwanee
196%
30019 Dacula
179%
30092 Peachtree Corners
158%
30518 Buford
155%
30047 Lilburn
121%
30046 Lawrenceville
120%
30043 Lawrenceville
105%
30093 Norcross
71%
30045 Lawrenceville
61%
30519 Buford
60%
30044 Lawrenceville
57%
30039 Snellville
55%

Lowest measured density

ZIP
vs. U.S. average
Index
30039 Snellville
55%
30044 Lawrenceville
57%
30519 Buford
60%
30045 Lawrenceville
61%
30093 Norcross
71%
30043 Lawrenceville
105%
30046 Lawrenceville
120%
30047 Lilburn
121%
30518 Buford
155%
30092 Peachtree Corners
158%
30019 Dacula
179%
30024 Suwanee
196%
30071 Norcross
206%
30078 Snellville
229%
30096 Duluth
261%
Low measured density is not evidence of opportunity. A ZIP with few chiropractors 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 = chiropractors per 10,000 people present (residents + 0.5×workers) ÷ the U.S. average. 100% = exactly average.

ZIPNeighborhood ResidentsWorkersChiropractors Per 10kIndexStatus
30096Duluth 71,73251,044 25 2.6 261% Very high density
30078Snellville 41,59714,318 11 2.3 229% High density
30071Norcross 25,83036,957 9 2.0 206% High density
30024Suwanee 88,06740,698 21 1.9 196% High density
30019Dacula 51,16210,879 10 1.8 179% High density
30092Peachtree Corners 36,99241,517 9 1.6 158% High density
30518Buford 57,91228,222 11 1.5 155% High density
30047Lilburn 70,12111,181 9 1.2 121% Above average
30046Lawrenceville 41,85017,398 6 1.2 120% Above average
30043Lawrenceville 87,92935,878 11 1.0 105% Above average
30093Norcross 46,41020,853 4 0.7 71% Below average
30045Lawrenceville 44,9939,560 3 0.6 61% Below average
30519Buford 59,99716,260 4 0.6 60% Below average
30044Lawrenceville 101,4759,478 6 0.6 57% Below average
30039Snellville 52,7834,601 3 0.5 55% 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 chiropractors

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 621310 — offices of chiropractors. 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: 149 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 (0.99 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.