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Lowest measured density of fast food in Colorado

Colorado has 25 ZIP codes where published counts of fast food are statistically below the U.S. rate. Coverage is the Colorado counties on this site, not the whole state. Same filters as the radius search. Census ZBP 2023 + ACS 2024.

Includes: Fast food · Quick-service restaurants · Takeout & delivery counters · Pizza delivery · Sandwich & burger chains. Counted together because official statistics use one 722513 code.

Statistically low ZIPs
25
Poisson p < 0.05
Comparable ZIPs
130
published count ≥ 5, ≥ 10,000 residents
U.S. rate
6.7
per 10,000 present

Coverage. Only the Colorado counties BizGapMap covers, not the whole state. A missing state page means no ZIP there cleared the test — we do not publish an empty list.

Lowest measured density is not evidence of opportunity. A low published count can mean weak demand, no suitable space, commuters spending elsewhere, or businesses with no paid employees that ZBP does not count. Each line is a question to check locally.

False positives. The test is one-sided at 5% with no correction for looking at many ZIPs. Of 130 comparable ZIPs here, about 7 could clear the bar by chance. Small ZIPs rarely reach significance, so “not on this list” does not mean “no gap”.

ZIP codes

ZIPCityCounty Fast foodExpected IndexBandZIP type ResidentsTest
80911 Colorado Springs El Paso County 6 22.8 26% Far below average Residential 33,027 p < 0.001
80130 Littleton Douglas County 5 17.4 29% Far below average Residential 24,719 p < 0.001
80109 Castle Rock Douglas County 6 20.7 29% Far below average Residential 28,400 p < 0.001
80526 Fort Collins Larimer County 10 31.6 32% Far below average Residential 44,326 p < 0.001
80919 Colorado Springs El Paso County 8 23.6 34% Far below average Mixed 27,787 p < 0.001
80910 Colorado Springs El Paso County 8 23.2 35% Far below average Residential 31,368 p < 0.001
80304 Boulder Boulder County 7 18.8 37% Far below average Residential 25,383 p < 0.01
80908 Colorado Springs El Paso County 7 18.2 39% Far below average Residential 25,486 p < 0.01
80128 Littleton Jefferson County 10 25.7 39% Far below average Residential 36,712 p < 0.001
80516 Erie Boulder County 11 28.1 39% Far below average Residential 39,048 p < 0.001
80602 Brighton Adams County 13 31.1 42% Far below average Residential 44,783 p < 0.001
80305 Boulder Boulder County 5 11.9 42% Far below average Residential 16,291 p ≈ 0.022
80924 Colorado Springs El Paso County 6 13.6 44% Far below average Residential 19,619 p ≈ 0.018
80132 Monument El Paso County 10 22.1 45% Far below average Residential 30,073 p < 0.01
80005 Arvada Jefferson County 9 19.8 45% Far below average Residential 28,459 p < 0.01
81507 Grand Junction Mesa County 5 11.0 45% Far below average Residential 15,947 p ≈ 0.037
80031 Westminster Adams County 14 26.4 53% Below average Residential 35,584 p < 0.01
80620 Evans Weld County 8 14.8 54% Below average Residential 20,798 p ≈ 0.042
80013 Aurora Arapahoe County 28 50.6 55% Below average Residential 73,248 p < 0.001
80550 Windsor Weld County 20 34.5 58% Below average Residential 46,456 p < 0.01
80504 Longmont Weld County 29 47.2 61% Below average Residential 63,451 p < 0.01
80127 Littleton Jefferson County 21 33.5 63% Below average Residential 43,494 p ≈ 0.014
80120 Littleton Arapahoe County 17 25.7 66% Below average Mixed 29,725 p ≈ 0.046
80138 Parker Douglas County 18 27.2 66% Below average Residential 36,895 p ≈ 0.042
80017 Aurora Arapahoe County 19 28.0 68% Below average Residential 40,584 p ≈ 0.048

Scroll the table sideways to see all columns. Sorted by measured density, lowest first.

How this is built

Who can be listed. ZIPs in the covered counties whose county has at least 15 ZIPs in our data, with at least 10,000 residents, and at least 5 published businesses in this industry. Census hides counts of 0–2; derived remainders are excluded.

Statistically low. P(X ≤ n | expected) < 0.05, where expected is the U.S. establishments-per-person-present rate times this ZIP’s demand (residents + 0.5 × jobs located here). Same definition as the index, so the percentage and the test cannot disagree. Full test →

ZIP type is jobs per resident, not zoning. A residential ZIP can look low because residents shop near work.

Questions

What does “lowest measured density” mean for fast food? A ZIP is listed only when Census published at least 5 fast food with paid employees, the ZIP has at least 10,000 residents, and a one-sided Poisson test finds the count statistically below the U.S. rate (p < 0.05). Index 100% is the national density per person present.

Is a low-density ZIP a place to open this kind of business? No. A low published count of fast food can mean weak demand, no suitable space, residents shopping near work, or businesses with no paid employees that Census ZBP does not count. Each line is a question to check locally, not a recommendation.

Why is a state missing from this list? A state page exists only when at least one ZIP in the counties we cover clears the same test as the radius search. We do not publish an empty list. Coverage is those counties, not the whole state.

← All states for fast food  ·  Fast food in Colorado (county totals)  ·  Search by radius

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.