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Middlesex County, NJ — Restaurants Saturation

How many restaurants 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. 43 ZIP codes analyzed.

Includes: Sit-down restaurants with table service. Counted together because official statistics use one 722511 code.

Measured density: Below average — 0.94× the U.S. rate (between 0.94× and 0.95× 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, 3 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   Middlesex County restaurants — 94–95% of the U.S. rate

643 restaurants are counted in Middlesex County — 6.0 per 10,000 people present (residents + daytime workers), 94% of the U.S. rate of 6.4.

On the comparable ZIP set (ZIPs with a published count in every year), the total has risen 6% between 2015 and 2023 (604 → 640). 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 08812 (Dunellen), 08904 (Highland Park), 08840 (Metuchen) — well above the national rate. On measured density alone, the lowest-density residential ZIPs with a published count are 08512 (Cranbury), 07008 (Carteret), 07001 (Avenel).

BLS QCEW puts the latest county-wide count (2026 Q1) at 610 establishments, the freshest available signal.

Measured density: Middlesex County sits at 94% of the U.S. rate for restaurants. 3 ZIPs with population have no published count (each 0–2 businesses), so the true per-capita rate is between 94% and 95% of the U.S. rate. Why. The highest measured density is in 08812 and 08904; the lowest measured density is in 08512 and 07008.

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

Restaurants
643–663
published count; upper bound counts each withheld ZIP cell as 2 (10 cells) (2023)
Per 10,000 present
6.0
residents + daytime workers
U.S. average
6.4
per 10,000 present
County index
0.94×
vs. U.S.
Latest quarter (QCEW)
610
2026 Q1 — county total
Residents
863,519
36 ZIPs with data
Workers
412,014
jobs located in county

Is the area growing?

Population
890,119
Census PEP, July 1 2024
Change since 2020
+3.3%
+28,659 people
Net migration 2024
+11,503
international +17,922, domestic −6,419
Jobs located here
459,260
LODES 2022, +2.0% since 2019

Middlesex County had an estimated 890,119 residents on July 1, 2024 — 3.3% more than in 2020 (+28,659). In the latest year it gained 14,000 people: births minus deaths +2,436, international migration +17,922, domestic migration −6,419. Components are published separately and may not sum exactly.

459,260 jobs were located in the county in 2022 (+2.0% since 2019), and 420,052 employed residents lived there (+1.2% 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
08837 Edison
+16.6%
08861 Perth Amboy
+10.9%
08840 Metuchen
+9.7%
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
232
no paid employees (2024)
Receipts
$21.5M
published gross receipts
Receipts per business
$93K
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 restaurants 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 6% since 2015

Number of restaurants in Middlesex 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.

604
2015
643
2018
617
2020
606
2021
627
2022
640
2023

Highest measured density

ZIP
vs. U.S. average
Index
08812 Dunellen
212%
08904 Highland Park
165%
08840 Metuchen
163%
08901 New Brunswick
156%
08817 Edison
146%
07095 Woodbridge
128%
08884 Spotswood
124%
08846 Middlesex
120%
08850 Milltown
117%
08820 Edison
111%
08816 East Brunswick
109%
08863 Fords
103%
08830 Iselin
98%
08879 South Amboy
96%
08831 Monroe Township
94%

Lowest measured density

ZIP
vs. U.S. average
Index
08512 Cranbury
28%
07008 Carteret
35%
07001 Avenel
35%
08536 Plainsboro
36%
08852 Monmouth Junction
41%
08854 Piscataway
53%
08824 Kendall Park
56%
08859 Parlin
63%
08810 Dayton
77%
08837 Edison
78%
07067 Colonia
80%
08902 North Brunswick
81%
08882 South River
82%
08872 Sayreville
84%
08857 Old Bridge
85%
Low measured density is not evidence of opportunity. A ZIP with few restaurants 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 ResidentsWorkersRestaurantsIndex
08832Keasbey Employment hub 2,2526,067 0–2 —

Scroll the table sideways to see all columns.

All ZIP codes

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

ZIPNeighborhood ResidentsWorkersRestaurants Per 10kIndexStatus
08812Dunellen 14,2245,443 23 13.6 212% High density
08904Highland Park 15,1212,034 17 10.5 165% High density
08840Metuchen 18,2065,838 22 10.4 163% High density
08901New Brunswick 57,26320,240 67 9.9 156% High density
08817Edison 49,02033,129 61 9.3 146% Above average
07077Sewaren 3,248386 3 8.7 136% Above average
07095Woodbridge 20,75614,945 23 8.1 128% Above average
08884Spotswood 8,1871,314 7 7.9 124% Above average
08846Middlesex 14,6454,540 13 7.7 120% Above average
08850Milltown 8,5381,680 7 7.5 117% Above average
08820Edison 39,97813,336 33 7.1 111% Above average
08816East Brunswick 49,36027,237 44 7.0 109% Above average
08863Fords 12,7711,730 9 6.6 103% Above average
08830Iselin 19,55121,378 19 6.3 98% Below average
08879South Amboy 23,5564,852 16 6.2 96% Below average
08831Monroe Township 55,65817,939 39 6.0 94% Below average
08861Perth Amboy 59,35113,974 40 6.0 94% Below average
07080South Plainfield 24,41123,674 20 5.5 86% Below average
08857Old Bridge 40,89110,542 25 5.4 85% Below average
08872Sayreville 20,2044,109 12 5.4 84% Below average
08882South River 16,1242,053 9 5.2 82% Below average
08902North Brunswick 43,93219,697 28 5.2 81% Below average
07067Colonia 18,5872,119 10 5.1 80% Below average
08837Edison 19,43737,746 19 5.0 78% Below average
08810Dayton 7,9528,493 6 4.9 77% Below average
08859Parlin 25,4484,022 11 4.0 63% Below average
08824Kendall Park 13,3661,234 5 3.6 56% Below average
08854Piscataway 61,08831,170 26 3.4 53% Below average
08852Monmouth Junction 18,06210,034 6 2.6 41% Far below average
08536Plainsboro 20,81718,611 7 2.3 36% Far below average
07001Avenel 17,1219,947 5 2.3 35% Far below average
07008Carteret 25,52611,257 7 2.2 35% Far below average
08512Cranbury 12,92819,234 4 1.8 28% Far below average
07064Port Reading 3,4811,908 0–2 — — Not published
08818Edison —1,322 0–2 — — Not published
08828Helmetta 2,459102 0–2 — — Not published
08832Keasbey 2,2526,067 0–2 — — Not published
08855Piscataway —3,089 0–2 — — Not published
08862Perth Amboy —78 0–2 — — Not published
08871Sayreville —32 0–2 — — Not published
08903New Brunswick —4,044 0–2 — — Not published
08906New Brunswick —14 0–2 — — Not published
08933New Brunswick —3,022 0–2 — — Not published

Scroll the table sideways to see all columns.

Find an actual space in Edison

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 Edison retail space →
Crexi
Free listings + market data
Browse Edison retail space →
CityFeet
Retail space for lease
Browse Edison 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 Middlesex County and restaurants

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 722511 — full-service restaurants. 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 610 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 (6.39 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.