RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4612 locations in the last 30 days (4757 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/7/20254929 W ARGYLE STForest Glen45Completed10 daysMobile DeviceCity 311
9/7/20252833 N MOZART STAvondale35Completed9 daysMobile DeviceCity 311
9/7/20259861 S PROSPECT AVEBeverly19Completed10 daysMobile DeviceCity 311
9/7/20254828 S DR MARTIN LUTHER KING JR DRGrand Boulevard3Completed11 daysPhone CallCity 311
9/7/20257220 S CONSTANCE AVESouth Shore7Completed9 daysInternetCity 311
9/7/20251621 S KEDVALE AVENorth Lawndale24Completed10 daysInternetCity 311
9/7/20251424 W HOWARD STRogers Park49Completed11 daysPhone CallCity 311
9/7/20253671 N ELSTON AVEIrving Park33Completed11 daysMobile DeviceCity 311
9/7/20253444 S HOYNE AVEMcKinley Park12Completed9 daysspot-open311-CHITEXTCity 311
9/7/202510525 S CORLISS AVEPullman9Completed11 daysPhone CallCity 311
9/7/20251658 W DIVERSEY PKWYLake View32Completed10 daysInternetCity 311
9/7/202510521 S CORLISS AVEPullman9Completed10 daysPhone CallCity 311
9/7/20251425 W CUYLER AVELake View47Completed11 daysInternetCity 311
9/7/20251541 W BARRY AVELake View32Completed9 daysMobile DeviceCity 311
9/7/2025822 N CALIFORNIA AVEWest Town36Completed10 daysInternetCity 311
9/7/2025109 W CHESTNUT STNear North Side2Completed3 daysMobile DeviceCity 311
9/7/20254304 N SPRINGFIELD AVEIrving Park39Completed11 daysInternetCity 311
9/7/20251745 N ARTESIAN AVEWest Town1Completed9 daysMobile DeviceCity 311
9/7/20256245 S KEDZIE AVEChicago Lawn14Completed8 daysPhone CallCity 311
9/7/20252436 W 119TH STMorgan Park19Completed4 daysInternetCity 311
9/7/20252336 W THOMAS STWest Town1Completed11 daysMobile DeviceCity 311
9/7/2025737 N NOBLE STWest Town27Completed10 daysMobile DeviceCity 311
9/7/20255905 N MELVINA AVENorwood Park45Completed10 daysPhone CallCity 311
9/7/20255205 S NATCHEZ AVEGarfield Ridge23Completed11 daysMobile DeviceCity 311
9/7/20253045 N TROY STAvondale35Completed9 daysInternetCity 311
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