84121 ZIP Code, Salt Lake City, UT
84121 is a ZIP code in Salt Lake City, Utah in Salt Lake County. It covers 64 square miles of land. The closest ZIP codes are 84092, 84109 and 84124. 38,912 people live here in 15,436 households, more than in 9 of every 10 Utah ZIP codes. With about 604 people per square mile it is lightly settled, and most homes are owner-occupied (75%). Median household income is $115,515, above the Utah median of $95,166.
Quick facts
- Mailing city: Salt Lake City, UT
- County: Salt Lake County
- Land area: 64 sq mi
- Population: 38,912
- Median household income: $115,515
Key figures
| Measure | Value |
|---|---|
| Residents | 38,912 |
| Households | 15,436 |
| Median household income | $115,515 |
| Income per person | $59,542 |
| Median age | 41.1 |
| Homeowners | 74.9% |
| Median home value | $659,900 |
| Median rent | $1,774 |
| Bachelor's degree or higher | 53.2% |
| Average commute (minutes) | 21.9 |
| Households with kids under 18 | 26.0% |
| Moved in the past year | 12.3% |
| Below the poverty line | 7.2% |
| Broadband internet | 93.8% |
| Speak a non-English language at home | 10.3% |
Household income
| % of households | Value |
|---|---|
| <$10K | 2.9% |
| $10–15K | 0.9% |
| $15–25K | 4.2% |
| $25–35K | 2.7% |
| $35–50K | 7.0% |
| $50–75K | 12.2% |
| $75–100K | 13.3% |
| $100–150K | 21.0% |
| $150–200K | 14.1% |
| $200K+ | 21.6% |
Age
| % of all residents | Value |
|---|---|
| <10 | 10.7% |
| 10–19 | 12.0% |
| 20–24 | 4.3% |
| 25–34 | 14.2% |
| 35–44 | 14.4% |
| 45–54 | 10.5% |
| 55–64 | 13.4% |
| 65–74 | 11.4% |
| 75+ | 9.2% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 43.2% |
| Owned outright | 26.7% |
| Rented | 22.9% |
| Vacant | 7.1% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 68.8% |
| Townhome | 10.3% |
| 2–4 units | 2.8% |
| 5–19 units | 10.5% |
| 20+ units | 6.9% |
| Mobile / other | 0.7% |
Businesses in 84121
1,594 business establishments with 22,785 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 317
- Health Care and Social Assistance: 201
- Finance and Insurance: 194
- Real Estate and Rental and Leasing: 162
- Construction: 129
- Accommodation and Food Services: 105
- Retail Trade: 101
- Other Services (except Public Administration): 90
EDDM carrier routes
See every USPS carrier route in 84121 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 84092 — Sandy city, UT (4.7 mi)
- 84109 — Millcreek city, UT (6.2 mi)
- 84124 — Millcreek city, UT (7.2 mi)
- 84093 — Sandy city, UT (7.6 mi)
- 84117 — Holladay city, UT (8.4 mi)
- 84004 — Alpine city, UT (9.1 mi)
- 84060 — Park City city, UT (9.6 mi)
- 84094 — Sandy city, UT (9.7 mi)
Areas that include 84121
- Salt Lake City, UT ZIP codes — 25 ZIP codes
- Murray, UT ZIP codes — 4 ZIP codes
- Cottonwood Heights, UT ZIP codes — 2 ZIP codes
- Holladay, UT ZIP codes — 3 ZIP codes
- Brighton, UT ZIP codes — 1 ZIP code
- Salt Lake County ZIP codes — 42 ZIP codes
- Utah ZIP code data
Where it ranks
- No. 12 of 37: highest median household income in Salt Lake County
- No. 10 of 36: highest median home value in Salt Lake County
- No. 2 of 37: highest median age in Salt Lake County
- No. 4 of 20: highest median household income in Salt Lake City, UT
- No. 6 of 19: highest median home value in Salt Lake City, UT
- No. 6 of 20: highest share of owner-occupied homes in Salt Lake City, UT
- No. 1 of 20: highest median age in Salt Lake City, UT
Mail every home in 84121
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 84121, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 84121 in?
- 84121 is a Salt Lake City, UT mailing address. By land area, 24% lies inside Brighton, 12% lies inside Cottonwood Heights, 4% lies inside Holladay and 3% lies inside Murray; the rest is outside any Census-defined city or community.
- What county is 84121 in?
- 84121 is in Salt Lake County.
- What is the population of 84121?
- About 38,912 people (±1,130), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 41,628.
- What is the median household income in 84121?
- $115,515 (±$4,852), compared with $95,166 for Utah as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 84121?
- EDDM2GO's stored route library does not include 84121 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 84121?
- The closest, measured center to center: 84092 (4.7 mi, Sandy), 84109 (6.2 mi, Millcreek), 84124 (7.2 mi, Millcreek), 84093 (7.6 mi, Sandy), 84117 (8.4 mi, Holladay) and 84004 (9.1 mi, Alpine).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.