RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4224 locations in the last 30 days (4377 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/3/20266601 W ARCHER AVEGarfield Ridge13Completed2 daysMobile DeviceCity 311
5/26/20265401 S KARLOV AVEWest Elsdon23Completed2 daysPhone CallCity 311
3/28/20262556 S HILLOCK AVEBridgeport11Completed2 daysInternetCity 311
4/20/20267322 S DANTE AVESouth Shore8Completed2 daysPhone CallCity 311
2/7/20263113 S RACINE AVEBridgeport11Completed2 daysMobile DeviceCity 311
1/7/2026827 W BUCKINGHAM PLLake View44Completed2 daysPhone CallCity 311
3/31/20261244 W RACE AVEWest Town1Completed2 daysInternetCity 311
4/13/20264149 N SHERIDAN RDUptown46Completed2 daysMobile DeviceCity 311
11/3/20252730 N MAJOR AVEBelmont Cragin30Completed2 daysAlderman's OfficeCity 311
1/13/20265744 W GIDDINGS STPortage Park45Completed2 daysInternetCity 311
10/7/20256470 S NORMANDY AVEClearing13Completed2 daysInternetCity 311
6/14/20264834 N SPRINGFIELD AVEAlbany Park39Completed2 daysMobile DeviceCity 311
5/5/20261732 W MELROSE STLake View32Completed2 daysPhone CallCity 311
4/15/20262441 W BERTEAU AVENorth Center47Completed2 daysPhone CallCity 311
3/23/20266951 S MAPLEWOOD AVEChicago Lawn16Completed2 daysInternetCity 311
5/11/20266407 S KEDZIE AVEChicago Lawn14Completed2 daysInternetCity 311
8/11/20262537 S TRUMBULL AVESouth Lawndale22Completed2 daysPhone CallCity 311
4/27/20265313 N NEWLAND AVENorwood Park41Completed2 daysInternetCity 311
6/23/20265600 S HONORE STWest Englewood15Completed2 daysAlderman's OfficeCity 311
1/3/20265840 N KENMORE AVEEdgewater48Completed2 daysMobile DeviceCity 311
6/13/2026506 W 32ND STBridgeport11Completed2 daysMobile DeviceCity 311
8/3/20253858 S VERNON AVEDouglas4Completed2 daysInternetCity 311
6/16/20261953 S AVERS AVENorth Lawndale24Completed2 daysAlderman's OfficeCity 311
4/18/20261508 E 67TH STWoodlawn5Completed2 daysInternetCity 311
4/11/20264341 W LEXINGTON STWest Garfield Park24Completed2 daysPhone CallCity 311
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