How long would it take to walk every street in Harrow?
How many streets does Harrow have?
Harrow has 783 km of walkable streets and paths, across 1,578 named streets. Walking 5 km a day, it would take at least 157 days (about 5 months) to walk every one of them.
Covers the area inside the official London Borough of Harrow boundary on OpenStreetMap, not the rest of London. Last updated 5 October 2026.
Every street walked once, 5 km a day. Real walks double back, so the true number is a little higher.
Harrow is the 16th biggest of London’s 32 boroughs by length of streets. A lot of it is for walking only: 25% is paths, footways and steps, against 19% in a typical city. Along the way there are 33 landmarks to collect as stamps.
Harrow is part of London: 5,550 days for the whole city.
Your pace
The same streets at a different speed.
What’s the longest street in Harrow?
7.6 km inside Harrow
4.0 km, then Kenton Lane at 3.9 km
There are 3 separate streets called High Street
Landmarks to collect
33 stamps in Harrow. Each one is added to your map when you walk past.
Put it in perspective
Questions
What counts as a street?
Every street, lane and path in OpenStreetMap that you’re allowed to walk on, named or not: residential streets, main roads, footways, park paths and steps. Motorways, private roads, driveways and car parks are left out, and so are pavements drawn as separate lines, because walking one already counts for the street beside it.
Why “at least”?
The number assumes you walk each street once, with no doubling back and no walk to get there. Real walks overlap, so it will take a little longer.
Where does the data come from?
From OpenStreetMap, a map of the world made by volunteers. Harrow’s streets were last updated in October 2026.
What if a street is missing?
Anyone can add it to OpenStreetMap. It will appear here, and on your map in Untrod, after the next update.
How does Untrod track it?
Untrod for iPhone records your location during a walk, and only then, and colours in each street you walk along. Your map is only visible to you until you choose to share it.
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<p style="margin:4px 0 0;font:13px/1.4 sans-serif"><a href="https://untrod.app/streets/london/harrow">157 days to walk every street in Harrow</a> · Untrod</p>
