RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4661 locations in the last 30 days (4819 reports) · Last sighting 24 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/13/20262600 N MARSHFIELD AVELincoln Park32Completed12 daysPhone CallCity 311
8/28/20256846 S CARPENTER STEnglewood16Completed12 daysAlderman's OfficeCity 311
8/21/20265341 W SCHOOL STPortage Park31Completed12 daysPhone CallCity 311
8/20/2026168 N ELIZABETH STNear West Side27Completed12 daysMobile DeviceCity 311
8/7/2026822 N MARSHFIELD AVEWest Town1Completed12 daysMobile DeviceCity 311
9/9/20264044 W NELSON STAvondale31Completed12 daysAlderman's OfficeCity 311
9/4/20263009 S HALSTED STBridgeport11Completed12 daysAlderman's OfficeCity 311
10/8/20256811 S LOOMIS BLVDWest Englewood17Completed12 daysPhone CallCity 311
8/2/20254556 N MAGNOLIA AVEUptown46Completed12 daysMobile DeviceCity 311
10/3/20254850 W AINSLIE STForest Glen45Completed12 daysInternetCity 311
8/28/20254137 W WELLINGTON AVEAvondale31Completed12 daysAlderman's OfficeCity 311
9/24/20263616 N MAGNOLIA AVELake View44Completed12 daysAlderman's OfficeCity 311
7/31/20251412 W BELLE PLAINE AVELake View47Completed12 daysInternetCity 311
9/17/20268410 S PEORIA STAuburn Gresham17Completed12 daysPhone CallCity 311
9/10/20261922 N LOWELL AVEHermosa26Completed12 daysPhone CallCity 311
9/10/20261122 W 17TH STLower West Side25Completed12 daysPhone CallCity 311
9/17/20262416 S AVERS AVESouth Lawndale22Completed12 daysAlderman's OfficeCity 311
9/17/2025839 W NEWPORT AVELake View44Completed12 daysMobile DeviceCity 311
8/14/20252523 N HALSTED STLincoln Park43Completed12 daysAlderman's OfficeCity 311
7/22/20262932 W EASTWOOD AVEAlbany Park40Completed12 daysInternetCity 311
7/24/20269908 S LAFAYETTE AVERoseland9Completed12 daysPhone CallCity 311
8/6/20252923 W BALMORAL AVELincoln Square39Completed12 daysInternetCity 311
8/9/20265433 N LINCOLN AVELincoln Square40Completed12 daysInternetCity 311
9/4/20256209 N MOZART STWest Ridge50Completed12 daysAlderman's OfficeCity 311
7/30/20263740 N ST LOUIS AVEIrving Park35Completed12 daysInternetCity 311
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