RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4392 locations in the last 30 days (4558 reports) · Last sighting 14 hours ago

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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.

32080fewer → more

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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/20/20267235 W OLIVE AVENorwood Park41Completed9 daysInternetCity 311
9/29/20253720 S UNION AVEBridgeport11Completed9 daysMobile DeviceCity 311
9/9/202511133 S ASHLAND AVEMorgan Park21Completed9 daysPhone CallCity 311
8/12/20253436 N LINCOLN AVELake View47Completed9 daysMobile DeviceCity 311
9/22/2025853 N WOLCOTT AVEWest Town36Completed9 daysPhone CallCity 311
9/9/20265937 S WOLCOTT AVEWest Englewood15Completed9 daysMobile DeviceCity 311
8/4/20261100 W 25TH STBridgeport11Completed9 daysMobile DeviceCity 311
8/8/20265040 N ALBANY AVEAlbany Park33Completed9 daysInternetCity 311
10/11/20255617 S NAGLE AVEGarfield Ridge13Completed9 daysInternetCity 311
10/11/20255605 S NAGLE AVEGarfield Ridge13Completed9 daysInternetCity 311
10/13/20255624 W ROOSEVELT RDAustin29Completed9 daysPhone CallCity 311
9/15/20254551 W DIVERSEY AVEHermosa31Completed9 daysPhone CallCity 311
7/14/20261541 N MENARD AVEAustin29Completed9 daysAlderman's OfficeCity 311
8/18/20264310 W 14TH STNorth Lawndale24Completed9 daysPhone CallCity 311
9/3/20257029 N RAVENSWOOD AVERogers Park49Completed9 daysInternetCity 311
8/19/20266945 S MICHIGAN AVEGreater Grand Crossing6Completed9 daysPhone CallCity 311
10/7/20252848 N LOWELL AVEHermosa31Completed9 daysInternetCity 311
8/4/20262638 S WELLS STArmour Square11Completed9 daysPhone CallCity 311
7/27/2025848 N LARRABEE STNear North Side27Completed9 daysMobile DeviceCity 311
7/13/20261846 N RICHMOND STLogan Square26Completed9 daysInternetCity 311
8/11/20253856 N NORA AVEDunning38Completed9 daysPhone CallCity 311
10/13/20263225 W 83RD STAshburn18Completed9 daysPhone CallCity 311
10/6/20255001 S MORGAN STNew City20Completed9 daysPhone CallCity 311
9/22/20253927 N PAGE AVEDunning38Completed9 daysMobile DeviceCity 311
7/25/20261847 S LAFLIN STLower West Side25Completed9 daysMobile DeviceCity 311
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