Boulder County, Colorado

Boulder County covers 726 sq mi of land and has about 328,961 residents. 26 zip codes lie mainly within it, spread across 13 cities and towns. Zip codes that only partly reach into the county are listed on each zip's own page.

Population

328,961

453/sq mi

Median household income

$104K

U.S. $81K

Median home value

$756K

U.S. $333K

Median rent

$1,966

U.S. $1,413

Median age

37.7

U.S. 38.9

Poverty rate

11.2%

U.S. 12.5%

Cities and towns

Zip codes in Boulder County

26 total

Zip	City	Type	Population	IncomeMedian income	Home value
80025	Eldorado Springs	Residential	138	$134,102	—
80026	Lafayette	Residential	32,701	$120,187	$705,600
80027	Louisville	Residential	34,127	$154,232	$890,200
80038	Broomfield · PO box	PO box / unique	—	—	—
80301	Boulder	Residential	25,007	$95,207	$793,200
80302	Boulder	Residential	29,569	$61,698	$1,190,800
80303	Boulder	Residential	24,996	$78,555	$961,900
80304	Boulder	Residential	25,383	$126,558	$1,210,200
80305	Boulder	Residential	16,291	$126,107	$1,032,900
80306	Boulder · PO box	PO box / unique	—	—	—
80307	Boulder · PO box	PO box / unique	—	—	—
80308	Boulder · PO box	PO box / unique	—	—	—
80309	Boulder · PO box	PO box / unique	—	—	—
80310	Boulder	Residential	7,692	—	—
80314	Boulder · PO box	PO box / unique	—	—	—
80455	Jamestown	Residential	501	$169,286	$622,400
80466	Nederland	Residential	3,599	$100,962	$731,700
80471	Pinecliffe	Residential	0	—	—
80481	Ward	Residential	484	$116,563	$710,700
80501	Longmont	Residential	44,147	$80,911	$488,800
80502	Longmont · PO box	PO box / unique	—	—	—
80503	Longmont	Residential	35,846	$113,620	$755,500
80510	Allenspark	Residential	663	$101,250	$771,100
80533	Hygiene · PO box	PO box / unique	—	—	—
80540	Lyons	Residential	4,642	$139,521	$795,500
80544	Niwot	Residential	0	—	—

Boulder County at a glance

Compared with the U.S.

Household income distribution

<$25k

13%

$25–50k

12%

$50–75k

13%

$75–100k

11%

$100–150k

17%

$150–200k

11%

$200k+

24%

Highest education (adults 25+)

No diploma

High school

11%

Some college

15%

Associate's

Bachelor's

34%

Graduate

30%

How people get to work

Drove alone

53%

Carpooled

Transit

Walked

Bicycle

Worked from home

31%

Other

0.9%

At a glance

	Boulder	U.S.
Own their home	62%	65.2%
Bachelor's degree or higher	64.2%	35.7%
Work from home	31.2%	15.1%
Households with broadband	95.7%	91%
Without health insurance	4.4%	8.4%
Foreign-born	10.1%	14.1%
Veterans (of adults)	4.3%	6.2%
Unemployment	4.8%	5.2%
Average commute	22.3 min	26.4 min