Residential delivery area · Pennsylvania
ZIP Code 18631: Mifflinville, PA
ZIP code 18631 is in Mifflinville, Pennsylvania, entirely in Columbia County (Census 2020 ZIP-county file). About 1,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $46,125 (Census Bureau, ACS 2020-2024). By Census place, 89% of its land lies in Mifflinville (a census-designated place); 11% is outside any Census place.
- ACS2020-24
- Census2020
- ZBP2023
- Town
- Mifflinville · its only residential ZIP
- County
- Columbia County
- Census places
- Mifflinville census-designated place
- Micro area
- Bloomsburg-Berwick, PA
- House district
- PA-9 119th Congress
- State
- Pennsylvania
- Time zone
- Eastern
- Land area
- 1.4 sq mi · 774 people per sq mi
Where is ZIP code 18631?
18631 centers on 41.031°, -76.303° and covers 1.4 square miles of land plus 0.2 of water. It borders 3 ZIP codes: 18603, 18635, 17815.
The map draws ZIP code areas only. For the streets inside 18631, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 18631 compare with the rest of Columbia County?
| Measure | 18631 | In Columbia County | In PA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,100 | 15th of 19 | 1,127th of 1,833 |
| Median household income | $46k | not ranked | not ranked |
| Median home value | $214k | 9th of 14 | 560th of 1,069 |
18631's median household income is not ranked: its 90% margin of error (±$17,333) is more than a quarter of the figure ($46,125). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 76% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 18631?
The 2020 Census counted 1,122 people in 18631; the ACS, which samples households over 2020-2024, estimates 1,100. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 1,100±289 (90% margin)
- 2020 Census count
- 1,122
- Households
- 517
- Median age
- 47.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 18631?
Of the 1,100 people the ACS estimates in 18631, 20.2% are under 18 and 24.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (95.3%).
- Under 1820.2%
- 18 to 6454.9%
- 65 and older24.9%
- White, not Hispanic95.3%
- Hispanic or Latino3.2%
- Black, not Hispanic1.5%
- Asian, not Hispanic0.0%
- Other or two or more0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 18631 earn?
Median household income is $46,125 (ACS 2020-2024).
- Median household income
- $46,125±$17,333
- Income per person
- $29,601
- Below the poverty line
- 14.2%
- Unemployed (of the labor force)
- 0.0%
- Adults 25+ with a bachelor's degree
- 29.6%
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 18631?
- Median home value (owners' estimate)
- $214,100
- Median gross rent
- $959
- Homes owned by their occupants
- 78.3%
- Housing units
- 533
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 18631?
27 business establishments had a location in this ZIP code in 2023, 2 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction5
- Accommodation and food services5
- Retail trade4
- Health care and social assistance3
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 18631?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 18603 | Berwick | 18,827 | $60k | 4.6 mi |
| 18635 | Nescopeck | 3,734 | $74k | 5.3 mi |
| 17815 | Bloomsburg | 29,790 | $68k | 6.6 mi |
| 18246 | Rock Glen | 84 | $112k | 7.6 mi (near) |
| 17859 | Orangeville | 2,701 | $76k | 7.8 mi (near) |
| 17985 | Zion Grove | 1,237 | $72k | 8.4 mi (near) |
| 18241 | Nuremberg | 249 | $84k | 9.3 mi (near) |
| 17878 | Stillwater | 1,488 | $68k | 10.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.