RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4442 locations in the last 30 days (4606 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.

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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/14/20264141 N KENMORE AVEUptown46Completed1 dayPhone CallCity 311
8/6/20263835 N SOUTHPORT AVELake View44Completed1 dayInternetCity 311
2/26/20263532 W MONROE STEast Garfield Park28Completed1 dayPhone CallCity 311
2/25/20265837 N VIRGINIA AVEWest Ridge50Completed1 dayInternetCity 311
1/5/20264943 N AUSTIN AVEJefferson Park45Completed1 dayAlderman's OfficeCity 311
3/26/20269900 S PEORIA STWashington Heights21Completed1 dayPhone CallCity 311
1/6/20262700 N NEVA AVEMontclare29Completed1 dayMobile DeviceCity 311
2/11/20261350 W BYRON STLake View46Completed1 dayInternetCity 311
4/20/202612508 S LOWE AVEWest Pullman9Completed1 dayPhone CallCity 311
3/11/20263928 W 84TH PLAshburn18Completed1 dayAlderman's OfficeCity 311
5/18/20261813 W GRANVILLE AVEWest Ridge40Completed1 dayPhone CallCity 311
4/16/20267527 N RIDGE AVERogers Park49Completed1 dayMobile DeviceCity 311
6/15/20262144 N BISSELL STLincoln Park43Completed1 dayInternetCity 311
4/22/202610331 S CRANDON AVESouth Deering7Completed1 dayPhone CallCity 311
3/2/20261435 W 17TH STLower West Side25Completed1 dayMobile DeviceCity 311
5/6/20266118 W WARWICK AVEDunning38Completed1 dayInternetCity 311
2/2/20266546 S ROCKWELL STChicago Lawn16Completed1 dayInternetCity 311
11/18/20252642 W SUPERIOR STWest Town36Completed1 dayPhone CallCity 311
9/22/20261350 N DEARBORN STNear North Side2Completed1 dayInternetCity 311
5/12/20263140 S WALLACE STBridgeport11Completed1 dayInternetCity 311
3/18/20265500 W CULLOM AVEPortage Park45Completed1 dayMobile DeviceCity 311
1/12/20261064 N HERMITAGE AVEWest Town1Completed1 dayPhone CallCity 311
3/25/20267759 W ADDISON STDunning38Completed1 dayAlderman's OfficeCity 311
5/6/20264546 S WOOD STNew City15Completed1 dayMobile DeviceCity 311
1/20/20267337 N HONORE STRogers Park49Completed1 dayPhone CallCity 311
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