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County ZIP codes · Iowa · FIPS 19105

Jones County, IA ZIP Codes

Jones County, Iowa has 17 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 11 of the residential ones lie mainly in Jones County and 6 mainly in a neighboring county; 12 cross the county line. Median household income ranges from $62,222 in 52320 (Olin) to $104,821 in 52253 (Lisbon) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Jones County?

52032 · Bernard: $89k52033 · Cascade: $69k52205 · Anamosa: $73k52212 · Center Junction: $111k52216 · Clarence: $68k52237 · Hopkinton: $84k52252 · Langworthy: –52253 · Lisbon: $105k52305 · Martelle: $95k52306 · Mechanicsville: $62k52309 · Monmouth: $56k52310 · Monticello: $86k52312 · Morley: $37k52320 · Olin: $62k52321 · Onslow: $78k52323 · Oxford Junction: $41k52362 · Wyoming: $73k52205523105203352237520325221652306523625232052323522535232152309523055221252032 · Bernard: $89k52033 · Cascade: $69k52205 · Anamosa: $73k52212 · Center Junction: $111k52216 · Clarence: $68k52237 · Hopkinton: $84k52252 · Langworthy: –52253 · Lisbon: $105k52305 · Martelle: $95k52306 · Mechanicsville: $62k52309 · Monmouth: $56k52310 · Monticello: $86k52312 · Morley: $37k52320 · Olin: $62k52321 · Onslow: $78k52323 · Oxford Junction: $41k52362 · Wyoming: $73k52205523105203352237520325221652306523625232052323522535232152309523055221252032 · Bernard: $89k52033 · Cascade: $69k52205 · Anamosa: $73k52212 · Center Junction: $111k52216 · Clarence: $68k52237 · Hopkinton: $84k52252 · Langworthy: –52253 · Lisbon: $105k52305 · Martelle: $95k52306 · Mechanicsville: $62k52309 · Monmouth: $56k52310 · Monticello: $86k52312 · Morley: $37k52320 · Olin: $62k52321 · Onslow: $78k52323 · Oxford Junction: $41k52362 · Wyoming: $73k52205523105203352237520325221652306523625232052323523215230552212
The residential ZIP codes of Jones 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?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $69,023 and $86,080.

They carry 17 postal town names.

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

All 17 residential ZIP codes in Jones County

11 ZIP codes lie mainly in Jones County; 6 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Jones County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
52205 Anamosa 8,627 70 $73k $222k 85%
52310 Monticello 6,450 44 $86k $196k 95%
52033 Cascade 3,292 33 $69k $214k 58%
52320 Olin 1,425 25 $62k $131k 87%
52323 Oxford Junction 942 20 $41k $86k 78%
52305 Martelle 913 34 $95k $165k 78%
52362 Wyoming 816 15 $73k $136k 100%
52212 Center Junction 601 27 $111k $153k 100%
52321 Onslow 395 11 $78k $131k 100%
52312 Morley 46 639 $37k $84k 100%
52252 Langworthy 13 9 – – 100%

Partly in Jones County

Residential ZIP codes mainly in another county that reach at least 1% into Jones County, by their share here
In this county
52309 Monmouth 443 13 $56k $155k 28%
52306 Mechanicsville 1,642 22 $62k $168k 21%
52253 Lisbon 2,622 56 $105k $238k 18%
52216 Clarence 1,551 27 $68k $192k 14%
52032 Bernard 1,305 13 $89k $269k 7%
52237 Hopkinton 1,830 22 $84k $167k 3%

Download the 17 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?

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

Share of each ZIP code's land in Jones County and in the neighboring counties
ZIPIn JonesElsewhere
5220585%Linn County 15%
5231095%Linn County 4%
5203358%Dubuque County 42%
5225318%Cedar County 50%; Linn County 24%; Johnson County 9%
522373%Delaware County 96%; Dubuque County 2%
5230621%Cedar County 79%
5221614%Cedar County 86%
5232087%Cedar County 13%
520327%Dubuque County 47%; Jackson County 46%
5232378%Clinton County 13%; Cedar County 9%
5230578%Linn County 22%
5230928%Jackson County 72%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Jones County's ZIP codes use 3 prefixes: 520, 522 and 523.

Three-digit prefixes of Jones 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 Jones County's
PrefixSectional centerHereAll codes
520 Cedar Rapids, IA (SCF 522) 2 46
522 Cedar Rapids, IA (SCF 522) 6 50
523 Cedar Rapids, IA (SCF 522) 9 53

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