RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4644 locations in the last 30 days (4800 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.

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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/27/20252537 W THOMAS STWest Town36Completed7 daysInternetCity 311
8/27/20256161 N NAPER AVENorwood Park45Completed12 daysInternetCity 311
8/27/20255613 S MASSASOIT AVEGarfield Ridge13Completed12 daysPhone CallCity 311
8/27/20255036 N LOCKWOOD AVEJefferson Park45Completed12 daysMobile DeviceCity 311
8/27/20253239 W 61ST PLChicago Lawn14Completed1 dayPhone CallCity 311
8/27/20252451 W CARMEN AVELincoln Square40Completed13 daysPhone CallCity 311
8/27/20258541 S KOMENSKY AVEAshburn18Completed1 dayPhone CallCity 311
8/27/202510801 S DRAKE AVEMount Greenwood19Completed1 dayPhone CallCity 311
8/27/20252836 S CHRISTIANA AVESouth Lawndale22Completed9 daysPhone CallCity 311
8/27/20254043 N MEADE AVEPortage Park38Completed1 dayPhone CallCity 311
8/27/20254147 N MELVINA AVEPortage Park38Completed0 daysPhone CallCity 311
8/27/2025473 W 28TH PLBridgeport11Completed12 daysInternetCity 311
8/27/20252619 W BALMORAL AVELincoln Square40Completed0 daysPhone CallCity 311
8/27/20256550 N SEELEY AVEWest Ridge40Completed1 dayPhone CallCity 311
8/27/20251509 N SEDGWICK STNear North Side27Completed13 daysPhone CallCity 311
8/27/20252719 W CHASE AVEWest Ridge50Completed1 dayPhone CallCity 311
8/27/202510329 S ALBANY AVEMount Greenwood19Completed12 daysInternetCity 311
8/27/20252614 W FITCH AVEWest Ridge50Completed1 dayPhone CallCity 311
8/27/20254044 N KEDVALE AVEIrving Park39Completed13 daysMobile DeviceCity 311
8/27/20253716 W 115TH STMount Greenwood19Completed1 dayPhone CallCity 311
8/27/20252701 S KOLIN AVESouth Lawndale22Completed9 daysPhone CallCity 311
8/27/20252143 N KARLOV AVEHermosa35Completed9 daysInternetCity 311
8/27/20252129 N KENNETH AVEHermosa26Completed14 daysInternetCity 311
8/27/20254435 W 55TH STWest Elsdon13Completed12 daysMobile DeviceCity 311
8/27/20255448 N PAULINA STEdgewater40Completed13 daysMobile DeviceCity 311
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