Smithfield, NC 27577 ZIP Code Profile

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Smithfield, NC

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ZIP Code 27577: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Smithfield, NC 27577

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 1,232
  • Single Family Addresses: 8,757
  • Multi-Family Addresses: 147
  • County: Johnston County
  • Centroid: Latitude 35.512, Longitude -78.347
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood Data

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Smithfield, NC 27577 Data & Demographics (As of July 1, 2016)


Total Population 24,035
Population in Households 22,780
Population in Familes 18,609
Population in Group Qrtrs 1,255
Population Density1 229
Diversity Index2 68


Total Households 8,660
Average Household Size 2.63
Family Households 5,769
Average Family Size 3


Total Housing Units 9,594 (100%)
Owner Occupied HU 5,053 (52.7%)
Renter Occupied HU 3,607 (37.6%)
Vacant Housing Units 934 ( 9.7%)
Median Home Value $141,961
Average Home Value $171,344


Median Household Income $39,550
Average Household Income $52,832
Per Capita Income $20,363
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.76% 0.9%
Households 0.55% 0.78%
Families 0.34% 0.64%
Median Household Income   0.42%
Per Capita Income   1.3%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Smithfield, NC 27577 - Peer Comparisons by Rank and Percentile

The table below compares 27577 to the other 775 ZIP Codes in North Carolina by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 156 80th
Population Density1 # 285 63rd
Diversity Index2 # 90 88th
Median Household Income # 466 40th
Per Capita Income # 522 33rd

Additional comparisons and rankings can be made with a VERY EASY TO USE North Carolina Census Data Comparison Tool.

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