03857 vs 03823 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 03857, Orange = ZIP 03823.
Quick verdict: ZIP 03857 is lower poverty rate, lower unemployment, higher work-from-home share. ZIP 03823 is wealthier, higher home values, more affordable rent, more diverse, more educated.
Quick Facts
ZIP 03857
Newmarket CDP, NH
View full profile →- Population9,431
- Median Income$94,345
- Median Home Value$385k
- Median Rent$1,465
- Median Age39.3 yrs
- Poverty Rate4.3%
ZIP 03823
Dover city, NH
View full profile →- Population2,121
- Median Income$144,635
- Median Home Value$459k
- Median Rent$1,229
- Median Age38.5 yrs
- Poverty Rate5.3%
Visual comparison (same scale)
Population
9,4312,121
Median Income
$94,345$144,635
Median Home Value
$385k$459k
Median Rent
$1,465$1,229
Median Age
39.3 yrs38.5 yrs
Poverty Rate
4.3%5.3%
Demographics
ZIP 03857
Newmarket CDP, NH
View full profile →- White %92.5%
- Black %0.7%
- Asian %1.8%
- Hispanic %1.8%
- Age 0–17 %16.3%
- Age 18–64 %67.0%
- Age 65+ %16.7%
- Bachelor's+ %49.7%
- Diversity Index14/100
ZIP 03823
Dover city, NH
View full profile →- White %84.0%
- Black %3.2%
- Asian %2.4%
- Hispanic %1.4%
- Age 0–17 %28.6%
- Age 18–64 %57.6%
- Age 65+ %13.8%
- Bachelor's+ %54.6%
- Diversity Index28/100
Visual comparison (same scale)
White %
92.5%84.0%
Black %
0.7%3.2%
Asian %
1.8%2.4%
Hispanic %
1.8%1.4%
Age 0–17 %
16.3%28.6%
Age 18–64 %
67.0%57.6%
Age 65+ %
16.7%13.8%
Bachelor's+ %
49.7%54.6%
Diversity Index
14/10028/100
Economy
ZIP 03857
Newmarket CDP, NH
View full profile →- Median Income$94,345
- Unemployment %1.5%
- IRS Net Migration+443
- Work From Home %17.3%
ZIP 03823
Dover city, NH
View full profile →- Median Income$144,635
- Unemployment %2.0%
- IRS Net Migration+100
- Work From Home %13.7%
Visual comparison (same scale)
Median Income
$94,345$144,635
Unemployment %
1.5%2.0%
IRS Net Migration
+443+100
Work From Home %
17.3%13.7%
Housing
ZIP 03857
Newmarket CDP, NH
View full profile →- Median Home Value$385k
- Median Rent$1,465
- Owner Occupied %52.4%
- Broadband %96.6%
- Vacant %2.9%
- Median Year Built1983
ZIP 03823
Dover city, NH
View full profile →- Median Home Value$459k
- Median Rent$1,229
- Owner Occupied %80.4%
- Broadband %96.2%
- Vacant %4.3%
- Median Year Built1983
Visual comparison (same scale)
Median Home Value
$385k$459k
Median Rent
$1,465$1,229
Owner Occupied %
52.4%80.4%
Broadband %
96.6%96.2%
Vacant %
2.9%4.3%
Median Year Built
19831983
Climate & Location
ZIP 03857
Newmarket CDP, NH
View full profile →- Snow Days/Year0 days
- Elevation (ft)63 ft
- Nearest Airport6.3 miles (10.1 km)
- Distance to Coast0.9 miles (1.5 km)
ZIP 03823
Dover city, NH
View full profile →- Snow Days/Year0 days
- Elevation (ft)119 ft
- Nearest Airport8.9 miles (14.4 km)
- Distance to Coast3.1 miles (5.0 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
63 ft119 ft
Nearest Airport
6.3 miles (10.1 km)8.9 miles (14.4 km)
Distance to Coast
0.9 miles (1.5 km)3.1 miles (5.0 km)
Infrastructure
ZIP 03857
Newmarket CDP, NH
View full profile →- Work From Home %17.3%
- Walkability (0–100)34
- Broadband %96.6%
ZIP 03823
Dover city, NH
View full profile →- Work From Home %13.7%
- Walkability (0–100)33
- Broadband %96.2%
Visual comparison (same scale)
Work From Home %
17.3%13.7%
Walkability (0–100)
3433
Broadband %
96.6%96.2%
Frequently Asked Questions
How do ZIP 03857 and 03823 compare?
ZIP 03857 is lower poverty rate, lower unemployment, higher work-from-home share. ZIP 03823 is wealthier, higher home values, more affordable rent, more diverse, more educated.
What do the blue and orange colors mean?
Blue represents the first ZIP (03857), orange the second (03823). 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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