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Facts and figures about
Boulder County, Colorado
329,543
County Population
Boulder
County Seat
740.48 sq mi
County area
9.44%
Boulder County sales tax rate
😵💫 1 Colorado CPA for every 300 residents results in high CPA rates
😓 19 million taxpayers missed the filing deadline last year
😨 30 million taxpayers miss deductions without the right tax expert
😣 Almost 1/2 of all Americans pay more tax than necessary
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Colorado State Income Tax Rates & Brackets for 2023
The following tables represents Colorado's income tax rates and tax brackets:
SINGLE FILER
Brackets
Rates
$0+
4.55%
MARRIED FILING JOINTLY
Brackets
Rates
$0+
4.55%
Filing Status
Standard Deduction Amt.
Single
$12,950
Couple
$19,425
Boulder county Sales Tax Rates for 2023
City
Sales Tax Rate
Tax Jurisdiction
Longmont
8.72%
Longmont
Boulder
9.05%
Boulder
Boulder
9.06%
Lafayette
Louisville
9.06%
Lafayette
Longmont
9.05%
Boulder
Lafayette
9.06%
Lafayette
Lyons
8.69%
Lyons
Nederland
9.44%
Nederland
Niwot
6.19%
Boulder Oldtn Niwot Ld Sp
Jamestown
7.19%
Ward
Ward
7.19%
Ward
Hygiene
5.19%
Boulder
Allenspark
5.19%
Boulder
Pinecliffe
5.19%
Boulder
Eldorado Springs
5.19%
Boulder
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