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Kent County, MI — Dentists Saturation

How many dentists 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. 40 ZIP codes analyzed.

Includes: General & family dentists · Orthodontists · Oral surgeons · Other dental specialists. Counted together because official statistics use one 621210 code.

Measured density: Below average — 0.92× the U.S. rate (between 0.92× and 0.96× 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. 18 ZIP cells in this county are withheld, 6 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   Kent County dentists — 92–96% of the U.S. rate

269 dentists are counted in Kent County — 3.1 per 10,000 people present (residents + daytime workers), 92% of the U.S. rate of 3.4.

On the comparable ZIP set (ZIPs with a published count in every year), the total has stayed roughly flat between 2015 and 2023 (267 → 266).

Measured supply density is highest in 49546 (Grand Rapids), 49525 (Grand Rapids), 49544 (Grand Rapids) — well above the national rate. On measured density alone, the lowest-density residential ZIPs with a published count are 49548 (Grand Rapids), 49507 (Grand Rapids), 49504 (Grand Rapids).

BLS QCEW puts the latest county-wide count (2026 Q1) at 265 establishments, the freshest available signal.

Measured density: Kent County sits at 92% of the U.S. rate for dentists. 6 ZIPs with population have no published count (each 0–2 businesses), so the true per-capita rate is between 92% and 96% of the U.S. rate. Why. The highest measured density is in 49546 and 49525; the lowest measured density is in 49548 and 49507.

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

Dentists
269–305
published count; upper bound counts each withheld ZIP cell as 2 (18 cells) (2023)
Per 10,000 present
3.1
residents + daytime workers
U.S. average
3.4
per 10,000 present
County index
0.92×
vs. U.S.
Latest quarter (QCEW)
265
2026 Q1 — county total
Residents
682,712
28 ZIPs with data
Workers
378,816
jobs located in county

Is the area growing?

Population
673,002
Census PEP, July 1 2024
Change since 2020
+2.2%
+14,478 people
Net migration 2024
+4,772
international +5,791, domestic −1,019
Jobs located here
399,575
LODES 2021, −6.9% since 2019

Kent County had an estimated 673,002 residents on July 1, 2024 — 2.2% more than in 2020 (+14,478). In the latest year it gained 7,893 people: births minus deaths +3,102, international migration +5,791, domestic migration −1,019. Components are published separately and may not sum exactly.

399,575 jobs were located in the county in 2021 (−6.9% since 2019), and 295,595 employed residents lived there (−6.9% 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→2021 spans the pandemic, so read it as one change, not a trend. The 2022 file for this state is not usable, so 2021 is the latest year shown.

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
49315 Byron Center
+16.4%
49418 Grandville
+11.9%
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 (no paid employees)

Nonemployer businesses
68
no paid employees (2024)
Receipts
$6.7M
published gross receipts
Receipts per business
$98K
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 dentists 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 — down 0% since 2015

Number of dentists in Kent 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.

267
2015
272
2018
271
2020
269
2021
269
2022
266
2023

Highest measured density

ZIP
vs. U.S. average
Index
49546 Grand Rapids
366%
49525 Grand Rapids
218%
49544 Grand Rapids
190%
49508 Grand Rapids
169%
49418 Grandville
161%
49316 Caledonia
117%
49341 Rockford
103%
49301 Ada
96%
49345 Sparta
95%
49306 Belmont
94%
49519 Wyoming
75%
49315 Byron Center
60%
49331 Lowell
59%
49503 Grand Rapids
59%
49509 Wyoming
57%

Lowest measured density

ZIP
vs. U.S. average
Index
49548 Grand Rapids
20%
49507 Grand Rapids
28%
49504 Grand Rapids
36%
49534 Grand Rapids
41%
49506 Grand Rapids
52%
49505 Grand Rapids
55%
49509 Wyoming
57%
49503 Grand Rapids
59%
49331 Lowell
59%
49315 Byron Center
60%
49519 Wyoming
75%
49306 Belmont
94%
49345 Sparta
95%
49301 Ada
96%
49341 Rockford
103%
Low measured density is not evidence of opportunity. A ZIP with few dentists 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 ResidentsWorkersDentistsIndex
49512Grand Rapids Employment hub 18,37358,619 4 25%

Scroll the table sideways to see all columns.

All ZIP codes

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

ZIPNeighborhood ResidentsWorkersDentists Per 10kIndexStatus
49546Grand Rapids 34,72128,390 60 12.3 366% Very high density
49525Grand Rapids 30,88717,673 29 7.3 218% High density
49544Grand Rapids 9,63118,531 12 6.4 190% High density
49508Grand Rapids 42,72016,739 29 5.7 169% High density
49418Grandville 31,91317,491 22 5.4 161% High density
49316Caledonia 26,4278,493 12 3.9 117% Above average
49341Rockford 39,4098,225 15 3.4 103% Above average
49301Ada 19,8463,870 7 3.2 96% Below average
49345Sparta 13,5124,513 5 3.2 95% Below average
49306Belmont 11,0283,268 4 3.2 94% Below average
49519Wyoming 27,9658,008 8 2.5 75% Below average
49315Byron Center 27,09115,465 7 2.0 60% Below average
49331Lowell 17,6614,977 4 2.0 59% Below average
49503Grand Rapids 39,48952,626 13 2.0 59% Below average
49509Wyoming 28,15216,867 7 1.9 57% Below average
49505Grand Rapids 32,42610,707 7 1.9 55% Below average
49506Grand Rapids 34,67311,608 7 1.7 52% Below average
49534Grand Rapids 23,71910,771 4 1.4 41% Far below average
49504Grand Rapids 40,03620,522 6 1.2 36% Far below average
49507Grand Rapids 38,4877,409 4 0.9 28% Far below average
49512Grand Rapids 18,37358,619 4 0.8 25% Far below average
49548Grand Rapids 34,77719,553 3 0.7 20% Far below average
49302Alto 9,7541,294 0–2 — — Not published
49317Cannonsburg —76 0–2 — — Not published
49319Cedar Springs 18,8024,090 0–2 — — Not published
49321Comstock Park 15,9707,882 0–2 — — Not published
49326Gowen 3,980140 0–2 — — Not published
49330Kent City 5,599651 0–2 — — Not published
49343Sand Lake 5,664434 0–2 — — Not published
49351Rockford —937 0–2 — — Not published
49355Ada —3,117 0–2 — — Not published
49468Grandville —42 0–2 — — Not published
49501Grand Rapids —2,825 0–2 — — Not published
49510Grand Rapids —167 0–2 — — Not published
49514Grand Rapids —149 0–2 — — Not published
49515Grand Rapids —478 0–2 — — Not published
49516Grand Rapids —43 0–2 — — Not published
49518Grand Rapids —439 0–2 — — Not published
49523Grand Rapids —10 0–2 — — Not published
49588Grand Rapids —88 0–2 — — Not published

Scroll the table sideways to see all columns.

Find an actual space in Grand Rapids

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 Grand Rapids retail space →
Crexi
Free listings + market data
Browse Grand Rapids retail space →
CityFeet
Retail space for lease
Browse Grand Rapids 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 Kent County and dentists

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 621210 — offices of dentists. 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 265 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 (3.35 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.