RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4441 locations in the last 30 days (4600 reports) · Last sighting 22 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.

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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

57,079 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/14/20255508 W BRYN MAWR AVEJefferson Park45Completed8 daysPhone CallCity 311
10/14/20258222 S CHAPPEL AVESouth Chicago8Completed7 daysAlderman's OfficeCity 311
10/14/20254947 W SCHUBERT AVEBelmont Cragin31Completed8 daysInternetCity 311
10/14/20253652 N CHRISTIANA AVEIrving Park35Completed8 daysInternetCity 311
10/14/202510643 S TRUMBULL AVEMount Greenwood19Completed9 daysInternetCity 311
10/14/202511261 S RACINE AVEMorgan Park21Completed8 daysMobile DeviceCity 311
10/14/20254245 W FILLMORE STNorth Lawndale24Completed8 daysInternetCity 311
10/14/20252339 N KARLOV AVEHermosa35Completed8 daysMobile DeviceCity 311
10/14/20252332 W HARRISON STNear West Side28Completed7 daysMobile DeviceCity 311
10/14/20256500 S UNIVERSITY AVEWoodlawn20Completed2 daysPhone CallCity 311
10/14/20254711 N MONTICELLO AVEAlbany Park33Completed10 daysPhone CallCity 311
10/14/20252444 W IOWA STWest Town36Completed2 daysInternetCity 311
10/14/2025440 W 44TH STNew City15Completed3 daysPhone CallCity 311
10/14/20256804 S ROCKWELL STChicago Lawn16Completed7 daysPhone CallCity 311
10/14/20252201 W WASHINGTON BLVDNear West Side27Completed7 daysPhone CallCity 311
10/14/20256519 S FAIRFIELD AVEChicago Lawn16Completed7 daysMobile DeviceCity 311
10/14/20253751 N CLIFTON AVELake View44Completed9 daysInternetCity 311
10/14/20257518 N GREENVIEW AVERogers Park49Completed8 daysMobile DeviceCity 311
10/14/20255411 N ARTESIAN AVELincoln Square40Completed3 daysMobile DeviceCity 311
10/14/20251337 N DEARBORN STNear North Side2Completed7 daysInternetCity 311
10/14/202511407 S FORRESTVILLE AVEPullman9Completed8 daysInternetCity 311
10/14/202511421 S FORRESTVILLE AVEPullman9Completed8 daysInternetCity 311
10/14/20252534 N SOUTHPORT AVELincoln Park32Completed7 daysInternetCity 311
10/14/20257204 S KEDZIE AVEChicago Lawn17Completed9 daysMobile DeviceCity 311
10/14/20251825 W WINONA STLincoln Square40Completed3 daysInternetCity 311
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