RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4449 locations in the last 30 days (4613 reports) · Last sighting 13 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.

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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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/7/20251702 N BISSELL STLincoln Park43Completed12 daysMobile DeviceCity 311
8/7/20257811 S SPAULDING AVEAshburn18Completed7 daysPhone CallCity 311
8/7/20254517 N KNOX AVEIrving Park39Completed11 daysPhone CallCity 311
8/7/20255610 S TRIPP AVEWest Elsdon13Completed15 daysAlderman's OfficeCity 311
8/7/20253638 S EMERALD AVEBridgeport11Completed5 daysAlderman's OfficeCity 311
8/7/20252642 N WILTON AVELincoln Park43Completed13 daysPhone CallCity 311
8/7/20251702 N BISSELL STLincoln Park43Completed12 daysInternetCity 311
8/7/20256233 S PARKSIDE AVEClearing13Completed15 daysAlderman's OfficeCity 311
8/7/20256431 N SAYRE AVENorwood Park41Completed11 daysAlderman's OfficeCity 311
8/7/20256915 N CALDWELL AVEForest Glen45Completed12 daysInternetCity 311
8/7/20256539 S KNOX AVEClearing13Completed11 daysAlderman's OfficeCity 311
8/7/20257400 S KINGSTON AVESouth Shore7Completed6 daysPhone CallCity 311
8/7/20252311 S HAMLIN AVESouth Lawndale22Completed7 daysInternetCity 311
8/7/202513036 S EXCHANGE AVEHegewisch10Completed7 daysPhone CallCity 311
8/7/20253937 W 63RD PLWest Lawn23Completed11 daysAlderman's OfficeCity 311
8/7/20255355 S NEWCASTLE AVEGarfield Ridge23Completed13 daysAlderman's OfficeCity 311
8/7/20254358 S KARLOV AVEArcher Heights14Completed13 daysAlderman's OfficeCity 311
8/7/20255359 S NEWCASTLE AVEGarfield Ridge23Completed13 daysAlderman's OfficeCity 311
8/7/20259014 S ADA STWashington Heights21Completed12 daysAlderman's OfficeCity 311
8/7/20255434 S KILBOURN AVEWest Elsdon23Completed12 daysAlderman's OfficeCity 311
8/7/20255435 S KILBOURN AVEWest Elsdon23Completed13 daysAlderman's OfficeCity 311
8/7/20251935 W GRACE STNorth Center47Completed14 daysInternetCity 311
8/7/20256544 N SPOKANE AVEForest Glen45Completed13 daysPhone CallCity 311
8/7/20255223 W DAKIN STPortage Park45Completed1 dayAlderman's OfficeCity 311
8/7/20256544 N SPOKANE AVEForest Glen45Completed13 daysPhone CallCity 311
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