Tampa, FL · standard
ZIP Code 33621
Hillsborough County, Florida - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,643
- 76/sq mi Moderate-density area
- $107,188
- Median income Above-median income area
- 48.6%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Tampa pairs an upper-quartile household income, in a rural, renter-heavy area.
- Top 15%
- household income, US ZIPs
- 76
- people per sq mi
- 0%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 33621 against every reporting US ZIP.
ZIP code 33621 covers 21.6 square miles in Tampa, Hillsborough County, Florida (a standard USPS delivery area), with a modest 1,643 residents on file, a density of 76 people per square mile, in the New York time zone.
ZIP 33621 lands in the middle-income range, with a median household income of $107,188 (39% above the average Florida ZIP), while per-capita income is $32,398. Both reported hardship measures are comparatively low in absolute terms: poverty is 2.5% and unemployment is 3.5%. The ACS does not report a median home value for this ZIP, so housing cost context is limited to the available tenure and rent fields.
A solid share of residents have a four-year degree: 48.6% of adults hold a bachelor's degree or higher, the median age is 21.5, and the average commute is -. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Hillsborough County, so 33621 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 33621
Top 5 sectors by establishment count in Tampa, FL
Which industries have the most business establishments in ZIP 33621.
- Professional, scientific, and technical services
Professional, scientific, and technical services
46 establishments
- Retail trade 7
Retail trade
7 establishments
- Accommodation and food services 4
Accommodation and food services
4 establishments
- Health care and social assistance 3
Health care and social assistance
3 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 33621, Tampa, FL · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
1,643
Population
21.6
Area (sq mi)
76
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 33621?
21.5
Median Age
50.8%
Male
49.2%
Female
3.8%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$107,188
Median Household Income
+39% vs state ZIP avg
$32,398
Per Capita Income
2.5%
Poverty Rate
3.5%
Unemployment Rate
How ZIP 33621 ranks among Florida ZIPs
Tampa, FL household income vs. every Florida ZIP code
Median household income among 946 reporting Florida ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$107,188 Top 12% higher than 88% of 946 Florida ZIPs
Each bar is a $20K-wide band; taller bars hold more Florida ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
565housing units
565
Total Housing Units
497
Occupied Units
68
Vacant Units
4.03
Avg Household Size
Occupancy Type
$2,703
Median Rent
2002
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 72 business establishments in ZIP 33621, employing approximately 1,579 people with a combined annual payroll of $139,925,000.
72
Businesses
1,579
Employees
$139.9M
Annual Payroll
4
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 46 | 63.9% |
| Retail trade | 7 | 9.7% |
| Accommodation and food services | 4 | 5.6% |
| Health care and social assistance | 3 | 4.2% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 33621 vs 33616 →
ZIP 33621 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 33702
Saint Petersburg (33702)
29,664 residents
- 33611
Tampa (33611)
29,478 residents
- 33703
Saint Petersburg (33703)
23,680 residents
- 33629
Tampa (33629)
23,638 residents
- 33607
Tampa (33607)
23,541 residents
- 33606
Tampa (33606)
17,746 residents
- 33609
Tampa (33609)
15,999 residents
- 33616
Tampa (33616)
13,560 residents
- 33534
Gibsonton (33534)
12,839 residents
What this shows Among its immediate neighbors, ZIP 33621 ranks #0 by population - useful context the national average alone can't give.
ZIP 33621 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 33629
Tampa (33629)
$164,355 median income
- 33606
Tampa (33606)
$120,729 median income
- 33609
Tampa (33609)
$115,844 median income
- 33621
Tampa (33621)
$107,188 median income
- 33602
Tampa (33602)
$97,320 median income
- 33703
Saint Petersburg (33703)
$95,224 median income
- 33616
Tampa (33616)
$93,210 median income
- 33611
Tampa (33611)
$90,910 median income
- 33534
Gibsonton (33534)
$80,484 median income
What this shows By household income, ZIP 33621 ranks #4 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 33616 | Tampa, FL | 13,560 | 2.3 mi |
| 33611 | Tampa, FL | 29,478 | 3.3 mi |
| 33629 | Tampa, FL | 23,638 | 5.4 mi |
| 33609 | Tampa, FL | 15,999 | 7.0 mi |
| 33606 | Tampa, FL | 17,746 | 6.5 mi |
| 33702 | Saint Petersburg, FL | 29,664 | 8.0 mi |
| 33607 | Tampa, FL | 23,541 | 8.6 mi |
| 33534 | Gibsonton, FL | 12,839 | 7.7 mi |
| 33703 | Saint Petersburg, FL | 23,680 | 7.7 mi |
| 33602 | Tampa, FL | 11,515 | 8.1 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 33621, both outside FL so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (1,643 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Hillsborough County
Related Areas
Frequently Asked Questions
What county is ZIP code 33621 in?
ZIP code 33621 (Tampa) is located in Hillsborough County, Florida. Hillsborough County contains multiple ZIP codes, see the full list at /counties/hillsborough-fl.
What is the population of ZIP code 33621?
ZIP code 33621 in Tampa, FL has a population of 1,643 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 33621?
The median household income in ZIP 33621 is $107,188, which is 41% above the national average of $76,288.
What is the demographic makeup of ZIP 33621?
The largest racial group in ZIP 33621 is White at 62.3%. Hispanic or Latino residents make up 16.7% of the population.
How many businesses are in ZIP code 33621?
ZIP code 33621 has 72 business establishments employing approximately 1,579 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 33621?
The top industries by establishment count in ZIP 33621 are: Professional, scientific, and technical services (46), Retail trade (7), Accommodation and food services (4). There are 4 industry sectors represented in total.
What is the education level in ZIP code 33621?
In ZIP code 33621, 62.6% of residents aged 25+ have a high school diploma or higher, and 48.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the poverty rate in ZIP code 33621?
The poverty rate in ZIP code 33621 is 2.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 33621's numbers, next.
- See how ZIP 33621 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Tampa, FL ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.