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Strafford County, NH — Coffee shops Saturation

How many coffee shops 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. 17 ZIP codes analyzed.

Includes: Coffee shops · Espresso bars · Boba / bubble tea shops · Juice & smoothie bars · Ice cream & frozen yogurt shops. Counted together because official statistics use one 722515 code.

Measured density: Range spans bands — 1.42× the U.S. rate (between 1.42× and 1.86× 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. 9 ZIP cells in this county are withheld, 7 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   Strafford County coffee shops — 142–186% of the U.S. rate

45 coffee shops are counted in Strafford County — 3.0 per 10,000 people present (residents + daytime workers), 142% of the U.S. rate of 2.1.

On the comparable ZIP set (ZIPs with a published count in every year), the total has risen 22% between 2015 and 2023 (23 → 28). 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 03868 (Rochester), 03867 (Rochester), 03820 (Dover) — well above the national rate. On measured density alone, the lowest-density residential ZIPs with a published count are 03824 (Durham), 03878 (Somersworth), 03820 (Dover).

BLS QCEW puts the latest county-wide count (2026 Q1) at 51 establishments, the freshest available signal.

Measured density: Strafford County sits at 142% of the U.S. rate for coffee shops. 7 ZIPs with population have no published count (each 0–2 businesses), so the true per-capita rate is between 142% and 186% of the U.S. rate. Why. The highest measured density is in 03868 and 03867; the lowest measured density is in 03824 and 03878.

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

Coffee shops
45–63
published count; upper bound counts each withheld ZIP cell as 2 (9 cells) (2023)
Per 10,000 present
3.0
residents + daytime workers
U.S. average
2.1
per 10,000 present
County index
1.42×
vs. U.S.
Latest quarter (QCEW)
51
2026 Q1 — county total
Residents
130,989
15 ZIPs with data
Workers
39,158
jobs located in county

Is the area growing?

Population
134,202
Census PEP, July 1 2024
Change since 2020
+2.4%
+3,128 people
Net migration 2024
+803
international +260, domestic +543
Jobs located here
49,353
LODES 2022, −3.4% since 2019

Strafford County had an estimated 134,202 residents on July 1, 2024 — 2.4% more than in 2020 (+3,128). In the latest year it gained 594 people: births minus deaths −222, international migration +260, domestic migration +543. Components are published separately and may not sum exactly.

49,353 jobs were located in the county in 2022 (−3.4% since 2019), and 63,471 employed residents lived there (+0.7% 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
03820 Dover
+5.7%
03861 Lee
+2.0%
03878 Somersworth
+2.0%
ZIP losing residents
2015–19 → 2020–24
Change
03824 Durham
−8.5%
03835 Farmington
−1.8%

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.

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 coffee shops 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 22% since 2015

Number of coffee shops in Strafford 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.

23
2015
26
2018
28
2020
27
2021
30
2022
28
2023

Highest measured density

ZIP
vs. U.S. average
Index
03868 Rochester
219%
03867 Rochester
177%
03820 Dover
159%
03878 Somersworth
129%
03824 Durham
118%

Lowest measured density

ZIP
vs. U.S. average
Index
03824 Durham
118%
03878 Somersworth
129%
03820 Dover
159%
03867 Rochester
177%
03868 Rochester
219%
Low measured density is not evidence of opportunity. A ZIP with few coffee shops 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 = coffee shops per 10,000 people present (residents + 0.5×workers) ÷ the U.S. average. 100% = exactly average.

ZIPNeighborhood ResidentsWorkersCoffee shops Per 10kIndexStatus
03839Rochester 4,2791,058 4 8.3 396% Very high density
03851Milton 4,333339 3 6.7 317% Very high density
03861Lee 4,576746 3 6.1 288% Very high density
03868Rochester 6,133736 3 4.6 219% High density
03867Rochester 22,7328,224 10 3.7 177% High density
03820Dover 33,44016,911 14 3.3 159% High density
03878Somersworth 12,2055,139 4 2.7 129% Above average
03824Durham 15,0802,138 4 2.5 118% Above average
03821Dover —151 0–2 — — Not published
03823Madbury 2,203217 0–2 — — Not published
03825Barrington 9,4891,928 0–2 — — Not published
03835Farmington 6,804629 0–2 — — Not published
03852Milton Mills 20531 0–2 — — Not published
03855New Durham 2,748146 0–2 — — Not published
03866Rochester —38 0–2 — — Not published
03869Rollinsford 2,456611 0–2 — — Not published
03884Strafford 4,306305 0–2 — — Not published

Scroll the table sideways to see all columns.

Find an actual space in Dover

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 Dover retail space →
Crexi
Free listings + market data
Browse Dover retail space →
CityFeet
Retail space for lease
Browse Dover 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 Strafford County and coffee shops

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 722515 — snack & non-alcoholic beverage bars (incl. coffee shops). 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 51 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 (2.10 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.