30907 vs 29821 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 30907, Orange = ZIP 29821.
Quick verdict: ZIP 30907 is wealthier, lower poverty rate, more diverse, more educated, higher work-from-home share. ZIP 29821 is higher home values, more affordable rent, lower unemployment.
Quick Facts
ZIP 30907
Martinez CDP, GA
View full profile →- Population47,167
- Median Income$83,349
- Median Home Value$232k
- Median Rent$1,070
- Median Age39.9 yrs
- Poverty Rate8.2%
ZIP 29821
Clarks Hill CDP, SC
View full profile →- Population1,245
- Median Income$69,659
- Median Home Value$251k
- Median Rent$754
- Median Age41.1 yrs
- Poverty Rate37.8%
Visual comparison (same scale)
Population
47,1671,245
Median Income
$83,349$69,659
Median Home Value
$232k$251k
Median Rent
$1,070$754
Median Age
39.9 yrs41.1 yrs
Poverty Rate
8.2%37.8%
Demographics
ZIP 30907
Martinez CDP, GA
View full profile →- White %72.5%
- Black %12.9%
- Asian %7.2%
- Hispanic %7.0%
- Age 0–17 %20.4%
- Age 18–64 %61.6%
- Age 65+ %18.0%
- Bachelor's+ %38.9%
- Diversity Index45/100
ZIP 29821
Clarks Hill CDP, SC
View full profile →- White %86.1%
- Black %9.4%
- Asian %0.0%
- Hispanic %12.4%
- Age 0–17 %23.4%
- Age 18–64 %55.4%
- Age 65+ %21.1%
- Bachelor's+ %13.8%
- Diversity Index23/100
Visual comparison (same scale)
White %
72.5%86.1%
Black %
12.9%9.4%
Asian %
7.2%0.0%
Hispanic %
7.0%12.4%
Age 0–17 %
20.4%23.4%
Age 18–64 %
61.6%55.4%
Age 65+ %
18.0%21.1%
Bachelor's+ %
38.9%13.8%
Diversity Index
45/10023/100
Economy
ZIP 30907
Martinez CDP, GA
View full profile →- Median Income$83,349
- Unemployment %5.0%
- IRS Net Migration+2,081
- Work From Home %8.3%
ZIP 29821
Clarks Hill CDP, SC
View full profile →- Median Income$69,659
- Unemployment %3.3%
- IRS Net Migration+50
- Work From Home %4.1%
Visual comparison (same scale)
Median Income
$83,349$69,659
Unemployment %
5.0%3.3%
IRS Net Migration
+2,081+50
Work From Home %
8.3%4.1%
Housing
ZIP 30907
Martinez CDP, GA
View full profile →- Median Home Value$232k
- Median Rent$1,070
- Owner Occupied %69.8%
- Broadband %91.7%
- Vacant %19.9%
- Median Year Built1986
ZIP 29821
Clarks Hill CDP, SC
View full profile →- Median Home Value$251k
- Median Rent$754
- Owner Occupied %93.3%
- Broadband %81.6%
- Vacant %35.2%
- Median Year Built1994
Visual comparison (same scale)
Median Home Value
$232k$251k
Median Rent
$1,070$754
Owner Occupied %
69.8%93.3%
Broadband %
91.7%81.6%
Vacant %
19.9%35.2%
Median Year Built
19861994
Climate & Location
ZIP 30907
Martinez CDP, GA
View full profile →- Snow Days/Year0 days
- Elevation (ft)423 ft
- Nearest Airport4.8 miles (7.7 km)
- Distance to Coast3.2 miles (5.2 km)
ZIP 29821
Clarks Hill CDP, SC
View full profile →- Snow Days/Year0 days
- Elevation (ft)400 ft
- Nearest Airport12.8 miles (20.6 km)
- Distance to Coast7.2 miles (11.6 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
423 ft400 ft
Nearest Airport
4.8 miles (7.7 km)12.8 miles (20.6 km)
Distance to Coast
3.2 miles (5.2 km)7.2 miles (11.6 km)
Infrastructure
ZIP 30907
Martinez CDP, GA
View full profile →- Work From Home %8.3%
- Walkability (0–100)41
- Broadband %91.7%
ZIP 29821
Clarks Hill CDP, SC
View full profile →- Work From Home %4.1%
- Walkability (0–100)16
- Broadband %81.6%
Visual comparison (same scale)
Work From Home %
8.3%4.1%
Walkability (0–100)
4116
Broadband %
91.7%81.6%
Frequently Asked Questions
How do ZIP 30907 and 29821 compare?
ZIP 30907 is wealthier, lower poverty rate, more diverse, more educated, higher work-from-home share. ZIP 29821 is higher home values, more affordable rent, lower unemployment.
What do the blue and orange colors mean?
Blue represents the first ZIP (30907), orange the second (29821). The same colors are used in the map markers and comparison bars.
Where does this data come from?
Data is from the U.S. Census Bureau and other federal sources. See our Methodology page for details.
How can I compare other ZIP codes?
From any ZIP page, use the "Compare with Another ZIP" tool, or go to /compare/XXXXX-vs-YYYYY (replace with two 5-digit ZIP codes).
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