Colorado supplies more of Boulder County's inbound migration than any other state
Boulder County · Data as of
· ALEX Intelligence
65.6%Share of Arriving Households From One State — Colorado
#
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 largest single origin state's disclosed households (7,879) divided by all disclosed inbound households from outside this market (12,007) in the 2022-23 vintage.
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.