Home / Car washes / New Hampshire

Car washes in New Hampshire

How many car washes exist per person present (residents + daytime workers) across the 4 New Hampshire counties we cover, by ZIP code, compared with the U.S. average. Data: Census ZBP 2023 + ACS 2024 + BLS QCEW.

Includes: Car wash tunnels & bays · Self-serve & automatic washes · Detailing (wash-attached). Counted together because official statistics use one 811192 code.

State verdict (covered counties): Below the U.S. rate — 61% of the U.S. rate

Counties covered

in New Hampshire

Car washes

establishments (2023)

Per 10,000 present

0.3

residents + 0.5×workers

U.S. average

0.5

per 10,000 present

State index

61%

vs. U.S.

Residents

1,027,522

in covered counties

Workers

433,539

jobs in covered counties

Coverage. This page aggregates only the 4 New Hampshire counties BizGapMap covers — not the whole state. Counts and the index reflect those counties. The aggregate index uses only ZIP cells Census published, so it is a lower bound. Density is a supply-side signal: it counts existing car washes and the people present, not foot traffic, income, rent, or whether locals want more.

Counties in New Hampshire

City	County	Car washes	Residents	Workers	Per 10k	Index	Verdict
Dover	Strafford County	7–37	130,989	39,158	0.5	95–448%	Range spans bands
Portsmouth	Rockingham County	15–91	319,082	150,068	0.4	78–399%	Range spans bands
Concord	Merrimack County	4–58	151,026	60,154	0.2	45–632%	Range spans bands
Manchester	Hillsborough	11–79	426,425	184,159	0.2	43–288%	Range spans bands

Scroll the table sideways to see all columns.

Lowest vs. highest measured density

Fewest competitors per capita

95%

78%

45%

43%

Most competitors per capita

43%

45%

78%

95%

Low measured density is not evidence of opportunity. A county with few car washes may simply lack foot traffic, retail space, or demand. Use the ranking to find where to look, then verify locally.

← All Car washes markets nationwide · Methodology · Data sources

Check your ZIP · Low-density ZIPs nearby · Answers · Data story · Methodology · Data sources · About · Privacy · Terms · Updates (RSS)

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.