RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4348 locations in the last 30 days (4504 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/13/202511030 S DRAKE AVEMount Greenwood19Completed11 daysInternetCity 311
8/6/202611000 S NORMAL AVERoseland21Completed11 daysInternetCity 311
7/26/20263439 W MELROSE STAvondale35Completed11 daysMobile DeviceCity 311
9/18/20263415 N NORMANDY AVEDunning38Completed11 daysMobile DeviceCity 311
9/14/20254952 W ERIE STAustin37Completed11 daysMobile DeviceCity 311
8/8/20255433 N LINDER AVEJefferson Park45Completed11 daysMobile DeviceCity 311
7/25/2025902 E 83RD STChatham8Completed11 daysInternetCity 311
9/12/2025921 N DAMEN AVEWest Town36Completed11 daysMobile DeviceCity 311
9/12/20253849 N SOUTHPORT AVELake View44Completed11 daysAlderman's OfficeCity 311
8/14/20252307 W ADDISON STNorth Center32Completed11 daysInternetCity 311
8/8/20268200 S ELLIS AVEChatham8Completed11 daysInternetCity 311
9/18/20252922 W MONROE STEast Garfield Park27Completed11 daysMobile DeviceCity 311
8/31/20254567 N NARRAGANSETT AVEPortage Park38Completed11 daysMobile DeviceCity 311
9/11/20254851 W ROSCOE STPortage Park31Completed11 daysInternetCity 311
9/13/20264319 W 47TH STArcher Heights14Completed11 daysInternetCity 311
7/19/20265110 S UNION AVENew City20Completed11 daysInternetCity 311
8/7/20252847 W SHAKESPEARE AVELogan Square1Completed11 daysPhone CallCity 311
9/24/20261655 N SAWYER AVEHumboldt Park26Completed11 daysPhone CallCity 311
10/9/20254510 W 55TH STWest Elsdon23Completed11 daysInternetCity 311
7/19/20265112 S UNION AVENew City20Completed11 daysInternetCity 311
8/3/20265342 N KIMBALL AVENorth Park39Completed11 daysInternetCity 311
7/16/20265040 N ALBANY AVEAlbany Park33Completed11 daysInternetCity 311
9/25/20257137 S MAY STEnglewood17Completed11 daysPhone CallCity 311
7/26/20267357 N DAMEN AVERogers Park49Completed11 daysMobile DeviceCity 311
10/10/202510300 S BENSLEY AVESouth Deering7Completed11 daysPhone CallCity 311
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