RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4691 locations in the last 30 days (4844 reports) · Last sighting 2 days 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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/28/20253072 N AVERS AVEAvondale31Completed12 daysMobile DeviceCity 311
9/3/20253941 W 63RD PLWest Lawn23Completed12 daysAlderman's OfficeCity 311
8/1/20261847 N HUMBOLDT BLVDLogan Square26Completed12 daysMobile DeviceCity 311
8/2/20253918 W 102ND PLMount Greenwood19Completed12 daysInternetCity 311
7/15/2026849 W BUCKINGHAM PLLake View44Completed12 daysMobile DeviceCity 311
9/19/20262027 N BISSELL STLincoln Park43Completed12 daysMobile DeviceCity 311
7/29/20263320 W WRIGHTWOOD AVELogan Square35Completed12 daysInternetCity 311
9/4/20258129 S MORGAN STAuburn Gresham17Completed12 daysMobile DeviceCity 311
8/28/20254810 W BELMONT AVEPortage Park31Completed12 daysPhone CallCity 311
9/10/2026948 N DAMEN AVEWest Town36Completed12 daysMobile DeviceCity 311
8/19/20263914 N SAWYER AVEIrving Park33Completed12 daysPhone CallCity 311
9/4/20262409 S WENTWORTH AVEArmour Square11Completed12 daysAlderman's OfficeCity 311
8/28/20251402 W SUPERIOR STWest Town27Completed12 daysMobile DeviceCity 311
9/4/20253736 S EMERALD AVEBridgeport11Completed12 daysMobile DeviceCity 311
9/10/20254908 W BELDEN AVEBelmont Cragin31Completed12 daysPhone CallCity 311
9/6/20251719 W ESTES AVERogers Park49Completed12 daysInternetCity 311
9/2/20262900 N MENARD AVEBelmont Cragin30Completed12 daysPhone CallCity 311
8/6/20254879 N MASON AVEJefferson Park45Completed12 daysInternetCity 311
9/16/20267500 S WOOD STAuburn Gresham17Completed12 daysPhone CallCity 311
9/17/20262859 W MCLEAN AVELogan Square1Completed12 daysPhone CallCity 311
8/1/20252459 W BELLE PLAINE AVENorth Center47Completed12 daysAlderman's OfficeCity 311
7/29/20261718 S STATE STNear South Side3Completed12 daysInternetCity 311
9/13/20262459 W NORTH AVEWest Town1Completed12 daysMobile DeviceCity 311
9/9/20269635 S LA SALLE STRoseland9Completed12 daysPhone CallCity 311
10/3/20254934 S PULASKI RDArcher Heights14Completed12 daysPhone CallCity 311
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