RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4489 locations in the last 30 days (4656 reports) · Last sighting yesterday

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/23/20261546 W ARTHUR AVERogers Park49Completed0 daysMobile DeviceCity 311
2/12/20262896 S ARCHER AVEBridgeport11Completed0 daysInternetCity 311
11/20/20254517 N PAULINA STUptown47Completed0 daysInternetCity 311
12/3/20253417 S RACINE AVEBridgeport11Completed0 daysInternetCity 311
6/11/20261413 N MAPLEWOOD AVEWest Town1Completed0 daysInternetCity 311
12/18/20255258 W 54TH STGarfield Ridge23Completed0 daysInternetCity 311
3/26/20261615 W GREGORY STEdgewater40Completed0 daysInternetCity 311
2/9/20262920 W CHASE AVEWest Ridge50Completed0 daysMobile DeviceCity 311
2/9/20262924 W CHASE AVEWest Ridge50Completed0 daysMobile DeviceCity 311
2/9/20262922 W CHASE AVEWest Ridge50Completed0 daysMobile DeviceCity 311
4/8/20265212 S MAYFIELD AVEGarfield Ridge23Completed0 daysInternetCity 311
3/6/20263089 S BONFIELD STBridgeport11Completed0 daysPhone CallCity 311
12/22/20256119 S TROY STChicago Lawn15Completed0 daysInternetCity 311
4/23/20263000 S KEELEY STBridgeport11Completed0 daysPhone CallCity 311
4/22/20265016 N ALBANY AVEAlbany Park33Completed0 daysInternetCity 311
4/22/20265012 N ALBANY AVEAlbany Park33Completed0 daysInternetCity 311
4/8/20262249 W 33RD STMcKinley Park12Completed0 daysMobile DeviceCity 311
4/16/20267038 S PRAIRIE AVEGreater Grand Crossing6Completed0 daysInternetCity 311
7/21/20265840 S OAK PARK AVEGarfield Ridge13Completed0 daysMobile DeviceCity 311
11/21/20252453 W WALTON STWest Town36Completed0 daysInternetCity 311
4/23/20262917 S UNION AVEBridgeport11Completed0 daysPhone CallCity 311
4/6/20265020 N ALBANY AVEAlbany Park33Completed0 daysInternetCity 311
2/5/20265448 N PAULINA STEdgewater40Completed0 daysMobile DeviceCity 311
4/8/20263338 S MORGAN STBridgeport11Completed0 daysMobile DeviceCity 311
1/29/20262819 N LINCOLN AVELake View32Completed0 daysMobile DeviceCity 311
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