Last week, we explored migrations in and out of the tri-county region using 2012-13 IRS tax returns. This week, we highlight the remaining four counties in Southeastern Michigan (Livingston, Monroe, St. Clair and Washtenaw) where there was a total net gain of 32 residents. All counties, except Livingston, experienced net gains. Washtenaw County had the highest net gain of residents at 770, while Livingston County had a net loss of 1,085. Even with such gains and losses, the data presented in this post shows that majority of the migration in and out of a these counties occurred within the state’s boundaries.
Washtenaw County experienced a net increase of 770 new residents, according to 2012-13 tax returns. The IRS data shows that, there were 9,596 tax returns filed by new Washtenaw County residents and 8,826 filed by former Washtenaw County residents. Former Wayne County residents contributed the most to the population influx with 2,529 of them moving to Washtenaw County. Oakland County contributed the second highest number of new residents at 891, followed by Livingston County at 649. In total, of the 9,596 new residents who moved into Washtenaw County, 5,881 were from other Michigan counties. From outside of Michigan, Cook County, Illinois (where Chicago is located) contributed the highest number of new residents at 344; Los Angeles County in California contributed 130 new residents to Washtenaw County.
When viewing the number of residents who left Washtenaw County for elsewhere, 2,225 residents moved to Wayne County (Washtenaw County had a net gain of 304 residents from Wayne County). Additionally, Washtenaw County lost 915 residents to Oakland County (a net loss of 24), and 536 residents to Livingston County (a net gain of 113). In total, Washtenaw County lost 5,785 residents to other Michigan counties, for a net gain of 96.
From outside of Michigan, Washtenaw County lost 284 residents to Cook County, Illinois (net gain of 58). Washtenaw also lost 142 residents to Los Angeles County, California (a net loss of 12).
Livingston County lost 4,452 residents, according to 2012-13 IRS data, while gaining 3,367, for a net loss of 1,085 residents. Among the new Livingston County residents, 1,027 were from Oakland County, 536 from Washtenaw County, and 469 from Wayne County. In total, 3,285 Michigan residents moved to Livingston County during the 2012-13 time frame. Cook County, Illinois contributed the highest number of new residents to Livingston County, at 44 from an out-of-state county.
While Livingston County gained the largest number of residents from Oakland County, it also lost the most residents to the same county: it lost 1,292 residents, for a net loss of 265 residents to Oakland County. Livingston County lost 903 of its residents to Wayne County (a net loss of 434) and 649 of its residents to Washtenaw County. In total, 4,157 former Livingston County residents moved elsewhere in the state, for an in-state net loss of 872. Outside of Michigan, Cook County, Illinois gained former Livingston County residents at 37, for a net loss of 7.
Monroe County had a net gain of 143 residents, according to 2012-13 IRS tax returns. This rural county lost 2,350 residents to other counties while gaining 2,493 new residents. Monroe County’s largest population gain came from Wayne County at 852 residents; its second largest gain was from Lucas County, Ohio (Lucas County, which borders Monroe County, is home to Toledo) at 738. Wayne County and Lucas County were also the two counties that gained the most former Monroe County residents. Monroe lost 879 residents to Wayne County (net loss of 27) and 694 residents to Lucas County (a net gain of 141).
In total, Monroe County gained 1,564 residents from other Michigan counties and lost 1,485 residents to other Michigan counties for a net gain of 79 residents.
St. Clair County lost 2,232 residents and gained 2,192 residents, according to 2012-13 tax returns. The highest population gain for the county came from Macomb County with 1,001 residents, followed by Oakland County at 249. There were 141 former Wayne County residents who moved to St. Clair County. Pasco County, Florida (Tampa Bay area) contributed the largest number of new out-of-state residents to St. Clair County (28).
More former St. Clair County residents moved to Macomb County than anywhere else (1,194), resulting in a net loss of 193 residents to Macomb County. Oakland County gained the second highest number of St. Clair County residents at 210 (net gain) of 39. In total, 2,034 residents moved to St. Clair County from other Michigan counties and while 2,124 moved out, for a net loss of 90 residents. Maricopa County (Phoenix area), Arizona was the out-of-state county that gained the highest number of former St. Clair County residents at 25.
Overall, across Southeastern Michigan, there was a net gain of 5,770 residents. However, majority of the migration in and out of each county in the seven county region occurred between neighboring counties.