B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
23%
23% -- likelihood increase of walking for groceries for households within half a mile of shops (2026)
Having shops within half a mile increases the likelihood of walking for groceries by 23%.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
23%
Unit
Percentage
Data Vintage
2026
Entity
Geography
US
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
University of Washington Urban Freight Lab
Primary
Tier C
https://birdseyepost.com/blog/1-mile-radius-postcard-campaign ↗
Source Article
The CPG Guide to Measurable In-Store Lift From a 1
Original Research
University of Washington Urban Freight Lab
· Original study ↗
Methodology
Research from the University of Washington's Urban Freight Lab, as cited by BirdseyePost
Methodology documented
Segmentation
Industrymarketing
RegionUS
RoleAll marketers
Channelmulti-channel
Cite this stat
Plain Text
households within half a mile of shops: 23% likelihood increase of walking for groceries. Source: University of Washington Urban Freight Lab (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/half-mile-shop-proximity-walking-groceries-23pct
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<blockquote cite="https://lighthousedata.io/data/half-mile-shop-proximity-walking-groceries-23pct" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>23%</strong> -- likelihood increase of walking for groceries for households within half a mile of shops<br><small>Source: University of Washington Urban Freight Lab (2026) · <a href="https://lighthousedata.io/data/half-mile-shop-proximity-walking-groceries-23pct" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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