Boulder County offices will be closed Monday, Nov. 11 in observance of Veterans Day. Emergency and 24/7 public services will continue to operate.

2019 Time Trend Adjustments

Residential Time Trends July 1, 2013 through June 30, 2018

Market Area Factor Tables Map
2019 Apartment Time Trends
Market Areas: 640, 641, 642, 643, 644, 645, 646
PDF XLSX None
2019 Condominium Residential Time Trends
Market Areas: 630, 632, 633, 634
PDF XLSX None
2019 Boulder Residential Time Trends
Market Areas: 101, 102, 103, 104, 105, 106, 107, 108, 109
PDF XLSX Boulder Area
2019 Erie, Gunbarrel, Lafayette, Louisville, Niwot, & Superior Residential Time Trends
Market Areas: 401, 402, 403, 404, 405, 407, 501
PDF XLSX County Overview
2019 Longmont Residential Time Trends
Market Areas: 502, 503, 504, 505, 506, 507
PDF XLSX Longmont Area
2019 Mountain Residential Time Trends
Market Areas: 201, 202
PDF XLSX Southeast County
2019 Unincorporated Plains Residential Time Trends
Market Areas: 301, 302, 303, 304
PDF XLSX County Overview

Contact Us

Assessor

Phone: 303-441-3530
Fax: 303-441-4996

Business Personal Property
Phone: 303-441-3316
Fax: 303-441-1783

Mailing Address
PO Box 471
Boulder, CO 80306-0471

Locations

Boulder

1325 Pearl St., 2nd floor
Boulder, CO 80302
Map & Directions
Hours: 8 a.m.-4:30 p.m. M-F

Longmont

515 Coffman Street, Suite 114
Map & Directions
Hours: 8 a.m.-4:30 p.m.
Mondays ONLY

Lafayette

1376 Miners Dr., Unit 105
Map & Directions
Hours: 8 a.m.-4:30 p.m.
Tuesdays ONLY
(Office closed
December 24 & 31
for the Holidays)