RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4530 locations in the last 30 days (4685 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.

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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

54,257 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/4/20253229 W BEACH AVEHumboldt Park26Completed13 daysAlderman's OfficeCity 311
8/21/20262422 S MILLARD AVESouth Lawndale22Completed13 daysPhone CallCity 311
7/29/20266300 S HONORE STWest Englewood15Completed13 daysAlderman's OfficeCity 311
8/6/20266736 S MICHIGAN AVEGreater Grand Crossing6Completed13 daysPhone CallCity 311
8/20/20265100 N MONITOR AVEJefferson Park45Completed13 daysAlderman's OfficeCity 311
9/16/20267014 S BELL AVEChicago Lawn17Completed13 daysAlderman's OfficeCity 311
9/12/20254135 N MARMORA AVEPortage Park38Completed13 daysPhone CallCity 311
7/10/2026601 W 48TH PLNew City15Completed13 daysPhone CallCity 311
9/1/20261336 S ALBANY AVENorth Lawndale24Completed13 daysMobile DeviceCity 311
8/1/20252624 W HURON STWest Town36Completed13 daysMobile DeviceCity 311
9/3/20264620 S KILPATRICK AVEGarfield Ridge22Completed13 daysAlderman's OfficeCity 311
8/21/2026621 W BELDEN AVELincoln Park43Completed13 daysInternetCity 311
8/29/20263731 W GIDDINGS STAlbany Park33Completed13 daysMobile DeviceCity 311
8/13/20252743 W JARVIS AVEWest Ridge50Completed13 daysMobile DeviceCity 311
8/14/20254264 N MILWAUKEE AVEPortage Park45Completed13 daysPhone CallCity 311
7/25/20262200 W IOWA STWest Town36Completed13 daysInternetCity 311
7/17/2026858 N PAULINA STWest Town1Completed13 daysInternetCity 311
8/21/20264053 N DAMEN AVENorth Center47Completed13 daysAlderman's OfficeCity 311
9/15/20262850 W ADDISON STIrving Park35Completed13 daysPhone CallCity 311
9/12/20255839 W WAVELAND AVEPortage Park38Completed13 daysPhone CallCity 311
8/5/20267518 N SEELEY AVERogers Park49Completed13 daysPhone CallCity 311
9/15/20265711 S ABERDEEN STEnglewood16Completed13 daysPhone CallCity 311
10/2/2025810 W OLIVE AVEWest Town36Completed13 daysMobile DeviceCity 311
8/21/20251326 N CLEAVER STWest Town1Completed13 daysInternetCity 311
8/28/20254909 W AINSLIE STForest Glen45Completed13 daysPhone CallCity 311
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