County ZIP codes · Illinois · FIPS 17101

Lawrence County, IL ZIP Codes

Lawrence County, Illinois has 7 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Lawrence County and 3 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $53,622 in 62439 (Lawrenceville) to $66,620 in 62460 (Saint Francisville) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Where are the ZIP codes of Lawrence County?

The residential ZIP codes of Lawrence County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

62439 · $54k 62460 · $67k

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $53,622 and $65,543.

They carry 7 postal town names: Lawrenceville, Sumner, Bridgeport, Flat Rock, West Salem, Saint Francisville, Claremont.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 7 residential ZIP codes in Lawrence County

4 ZIP codes lie mainly in Lawrence County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Lawrence County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
62439	Lawrenceville	7,033	48	$54k	$101k	100%
62466	Sumner	4,001	29	$78k	$99k	89%
62417	Bridgeport	2,848	80	$55k	$105k	100%
62460	Saint Francisville	1,202	28	$67k	$90k	98%

Partly in Lawrence County

Residential ZIP codes mainly in another county that reach at least 1% into Lawrence County, by their share here
						In this county
62427	Flat Rock	1,730	21	$81k	$161k	24%
62421	Claremont	366	7	$56k	$85k	1%
62476	West Salem	1,222	16	$66k	$92k	1%

Download the 7 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

5 ZIP codes of Lawrence County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Lawrence County and in the neighboring counties
ZIP	In Lawrence	Elsewhere
62466	89%	Crawford County 9%; Richland County 2%
62427	24%	Crawford County 76%
62476	1%	Edwards County 69%; Wabash County 29%
62460	98%	Wabash County 2%
62421	1%	Richland County 93%; Crawford County 6%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Lawrence County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Lawrence County starts with 624.

Three-digit prefixes of Lawrence County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Lawrence County's
Prefix	Sectional center	Here	All codes
624	Champaign, IL (SCF 618)	7	61

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.