How concentrated the inbound migration to Boulder County is
Boulder County · Data as of
· ALEX Intelligence
79.5%Share of Arriving Households From the Top Three States — Colorado, California, Texas
#
State
Households
1
Colorado
7,879
2
California
1,096
3
Texas
576
4
Illinois
245
5
New York
241
6
Arizona
238
7
Washington
199
8
Florida
187
9
Massachusetts
175
10
Nevada
92
Read this carefully: The IRS withholds county-to-county flows below its disclosure threshold, so a county missing from this table is one whose flow was too small to publish, not one nobody moved from. Every total here is a total of disclosed flows and is therefore a floor.
Methodology
Source:
U.S. Internal Revenue Service, Statistics of Income Migration Data, county-to-county inflows, 2022-23
Measure
Households, ranked highest first across every U.S. state the IRS recorded sending households to Boulder County (Boulder, Broomfield, CO)
(34 ranked in total).
How the headline figure is computed
The top three units' combined count divided by the combined count of all 34 ranked units.
Universe
Every U.S. state the IRS disclosed at least one county-to-county flow from. Flows below the IRS disclosure threshold are absent from the source file, so the shares here are computed over disclosed flows.
Every figure on this page is computed directly from the dataset named above
by ALEX Intelligence. No figure on this page was written by hand or by a
language model. The query is stated so that anyone can re-run it and obtain
the same table.