RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4433 locations in the last 30 days (4590 reports) · Last sighting 5 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

57,080 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/15/20257231 S FAIRFIELD AVEChicago Lawn18Completed6 daysPhone CallCity 311
10/15/20252100 S MORGAN STLower West Side25Completed7 daysInternetCity 311
10/15/20252601 N MULLIGAN AVEBelmont Cragin36Completed2 daysInternetCity 311
10/15/20252022 N LAWLER AVEBelmont Cragin26Completed8 daysInternetCity 311
10/15/20253913 W 82ND STAshburn18Completed6 daysInternetCity 311
10/15/20252635 W ALTGELD STLogan Square1Completed7 daysAlderman's OfficeCity 311
10/15/20255705 W ADDISON STPortage Park30Completed8 daysInternetCity 311
10/15/20255452 N SPAULDING AVENorth Park39Completed9 daysMobile DeviceCity 311
10/15/20253943 N MOZART STIrving Park35Completed7 daysInternetCity 311
10/15/20252435 W BALMORAL AVELincoln Square40Completed2 daysInternetCity 311
10/15/20254115 N SPAULDING AVEIrving Park33Completed8 daysMobile DeviceCity 311
10/15/20255643 W LELAND AVEPortage Park45Completed8 daysInternetCity 311
10/15/20252032 N MOHAWK STLincoln Park43Completed5 daysPhone CallCity 311
10/15/20257100 S ST LAWRENCE AVEGreater Grand Crossing6Completed8 daysPhone CallCity 311
10/15/202513239 S RHODES AVERiverdale10Completed5 daysPhone CallCity 311
10/15/20256336 N ROCKWELL STWest Ridge50Completed7 daysMobile DeviceCity 311
10/15/20255158 S NASHVILLE AVEGarfield Ridge23Completed8 daysInternetCity 311
10/15/20254929 W ARGYLE STForest Glen45Completed8 daysMobile DeviceCity 311
10/15/20251273 W 73RD STWest Englewood17Completed8 daysPhone CallCity 311
10/15/20254281 W 76TH STWest Lawn18Completed6 daysMobile DeviceCity 311
10/15/20254417 N SAWYER AVEAlbany Park33Completed8 daysInternetCity 311
10/15/2025614 S OAKLEY BLVDNear West Side28Completed8 daysPhone CallCity 311
10/15/2025811 S WESTERN AVENear West Side28Completed8 daysPhone CallCity 311
10/15/2025928 W 19TH STLower West Side25Completed7 daysMobile DeviceCity 311
10/15/20251238 W OAKDALE AVELake View32Completed6 daysMobile DeviceCity 311
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